Matches · 2026-10-11 · rules version c4

Solar Pro 4 vs PokéChamp

Player 1 · winner
Solar Pro 4's team
autopilot 0%
Player 2
Solar Pro 4's team

Solar Pro 4 won in 6 turns · 3 min wall clock · 28,886 tokens · $0.006

The replay player loads from play.pokemonshowdown.com. The full battle log is below.

Decisions

  1. Team preview
    PokéChamp brought Kingambit,gholdengo,rotomwash
    Solar Pro 4 brought Gholdengo,kingambit,rotomwash2,273 tok · 3.6 s · $0.0003

    Mirror match. I need a strong lead, a special attacking core, and a priority cleaner. Gholdengo leads with Nasty Plot + Focus Blast to threaten their Gholdengo/Kingambit, Rotom-Wash provides fast VoltSwitch pressure and handles Snorlax/Dragapult, and Kingambit backrow with Sucker Punch cleans up late-game. This trio covers each other's weaknesses well.

    Reasoning trace (88 words)
    The opponent's team mirrors mine exactly. In Champions singles, bringing a mirror match means I need to pick the three that cover each other's weaknesses best and have the strongest lead. Gholdengo leads well with Nasty Plot + Focus Blast to threaten their Gholdengo/Kingambit, Kingambit backrow for late-game clean-up with Sucker Punch priority, and Rotom-Wash as a fast special attacker that can VoltSwitch and handle their Snorlax/Dragapult. This trio gives me a strong lead, a special attacking core, and a priority cleaner.
    
    I'll bring Gholdengo, Kingambit, and Rotom-Wash.
  2. Turn 1
    PokéChamp used Foulplay
    Solar Pro 4 used Focusblast1,791 tok · 4.0 s · $0.0002

    Gholdengo is faster than Kingambit and Focusblast is 4x super effective against Dark/Steel. Even at 70% accuracy, it's the best chance to knock out or severely cripple Kingambit before it can attack. Nastyplot is safer but lets Kingambit move first next turn with unknown moves.

    Reasoning trace (148 words)
    The opponent's Kingambit is at 100% HP, and we don't know its moves or item yet. Gholdengo is faster (136 vs 63-112), so we move first.
    
    Focusblast is 4x super effective on Kingambit (Steel/Dark). Even at 70% accuracy, it has a very high chance to knock out or severely damage Kingambit. The 10% SpD drop is a bonus.
    
    Nastyplot + Shadowball is safer but less threatening. Kingambit's moves are unknown, so it could have something like Sucker Punch or Iron Head that could hurt Gholdengo.
    
    Given that Focusblast is 4x super effective and Kingambit is likely not fully bulky, the best play is to try to knock it out immediately with Focusblast. If it misses, we still have Nastyplot up next turn or can Recover.
    
    The deciding factor: Focusblast's 4x super effective damage against Kingambit gives us the best chance to secure a knockout before it can act.
    PokéChamp switched to Gholdengo
  3. Turn 2
    PokéChamp used Shadowball
    Solar Pro 4 used Nastyplot3,429 tok · 23.7 s · $0.0008

    Gholdengo vs Gholdengo is a mirror match where my Pokémon has a solid speed advantage (136 vs 93-149) and massive Special Attack. Focus Blast is useless on Steel/Ghost. Shadow Ball is good, but Nasty Plot guarantees a massive Special Attack boost (203 → 304) to secure a knockout next turn, as Gholdengo's typing handles the remaining threats (Snorlax, Dragapult, Volcarona) well. I can likely survive a neutral hit if they move first.

    Reasoning trace (1,035 words)
    Thinking Process:
    
    1.  **Analyze the situation:**
        *   My active: Gholdengo (100% HP).
        *   Opponent's active: Gholdengo (100% HP).
        *   Opponent's bench: Kingambit (fainted), Rotom-Wash, Snorlax, Dragapult, Volcarona (one coming in).
        *   My bench: Kingambit (100%), Rotom-Wash (100%).
        *   Turn 1: My Gholdengo KO'd their Kingambit with Focus Blast. Their Gholdengo came in.
        *   Speed: My Gholdengo (136) vs Opponent Gholdengo (93-149). I might be faster or slower.
        *   Moves: Nasty Plot, Shadow Ball, Focus Blast (no effect on Gholdengo), Recover.
        *   Opponent's moves: Unknown yet.
        *   Goal: KO the opponent's Gholdengo or set up safely.
    
    2.  **Evaluate options:**
        *   *Focus Blast*: No effect on Gholdengo (Steel/Ghost resists Fighting). Waste of turn.
        *   *Recover*: Safe, but doesn't progress the match. Opponent might KO me or set up.
        *   *Nasty Plot*: Boosts SpA by 2. Gholdengo has huge SpA (203). If I'm faster, I can Nasty Plot then hit hard next turn. If slower, they might hit me first. But Gholdengo vs Gholdengo is neutral damage-wise (Ghost moves hit Steel/Ghost neutrally? Wait, Ghost is super effective on Ghost? No, Ghost is neutral on Ghost. Steel resists Ghost? No, Steel is neutral to Ghost. Wait, Ghost moves are super effective on Ghost? Let's check: Ghost vs Ghost is neutral. Ghost vs Steel is neutral. So Shadow Ball is neutral on Gholdengo. Wait, Shadow Ball is super effective on Gholdengo according to the prompt? "super effective on gholdengo". Let's trust the prompt. Actually, Ghost is super effective on Ghost? No, Ghost is neutral on Ghost. But the prompt says "super effective on gholdengo" for Shadow Ball. I'll trust the prompt's evaluation. Wait, maybe it's a typo in the prompt, but I should follow it. Actually, Ghost moves are neutral on Ghost. Steel is neutral to Ghost. So it should be neutral. But the prompt explicitly says "super effective on gholdengo". I will assume it's super effective or at least neutral. Wait, if it's super effective, that's great. Let's assume it's neutral or super effective. Either way, it's a good move.)
        *   *Shadow Ball*: 80 BP, 20% SpD drop. If I'm faster, I can hit. If slower, they might hit first.
        *   *Switch*: Kingambit or Rotom-Wash. Kingambit is slow (102) and has low SpA (72). Rotom-Wash is fast (138) and has high SpA (172). Rotom-Wash can hit Gholdengo with Thunderbolt (neutral), Hydro Pump (neutral), Shadow Ball (neutral/super effective?). Rotom-Wash is a good switch if I want to avoid a potential KO or if I think Gholdengo will set up. But Gholdengo is a great lead/mid-game pivot. I want to KO it if possible.
    
    3.  **Decide:**
        *   Gholdengo vs Gholdengo is a classic mirror match.
        *   My Gholdengo has 136 Speed. Opponent's is 93-149.
        *   If I'm faster, Nasty Plot + Shadow Ball next turn is huge.
        *   If I'm slower, they might Nasty Plot or hit me.
        *   Shadow Ball now is risky if they are faster and have a strong move, but it's the only damaging move that works (Focus Blast is useless).
        *   Actually, Nasty Plot is very strong on Gholdengo. If I Nasty Plot, I become a monster.
        *   Let's check the prompt's move list: "shadowball ... super effective on gholdengo". If it's super effective, it's a strong hit.
        *   However, Nasty Plot is often the best play on Gholdengo to sweep or secure a KO next turn.
        *   Wait, the opponent's Gholdengo has unknown moves. It could have Recover, Nasty Plot, Shadow Ball, Focus Blast, etc.
        *   If I use Shadow Ball, I might take a hit if they are faster.
        *   If I use Nasty Plot, I guarantee a massive boost if I survive, or I die but they take a hit? No, Nasty Plot is status.
        *   Given Gholdengo's massive SpA, Nasty Plot is extremely potent.
        *   Let's go with Nasty Plot to set up for a guaranteed KO next turn, assuming I survive or they don't have a one-shot. Gholdengo takes neutral damage from most things except Ground, Fire, Dark, Ghost (if super effective). Wait, Gholdengo is Steel/Ghost. Weak to Ground, Fire, Dark. Resists Normal, Flying, Rock, Bug, Steel, Grass, Psychic, Ice, Dragon, Fairy. Immune to Fighting, Normal.
        *   Opponent's bench: Rotom-Wash (Electric/Water), Snorlax (Normal), Dragapult (Dragon/Ghost), Volcarona (Bug/Fire).
        *   If they switch to Snorlax, it's neutral. Dragapult is neutral. Volcarona is neutral (Fire is neutral on Steel? No, Fire is neutral on Steel. Wait, Steel resists Fire. So Volcarona's Fire moves are not very effective. Volcarona's Bug moves are neutral. So Gholdengo is good against Volcarona).
        *   Rotom-Wash: Electric is neutral on Steel/Ghost. Water is neutral.
        *   So Gholdengo is in a good defensive position.
        *   I'll use Nasty Plot to boost my SpA and secure the KO next turn.
    
        Wait, let's reconsider Shadow Ball. If I'm faster, Shadow Ball + Nasty Plot next turn is better. But I don't know the speed tie. Nasty Plot is safer and guarantees a big hit next turn regardless of speed (if I survive). Actually, if I'm slower, they might KO me. But Gholdengo has 162 HP. A neutral special hit from a level 50 Gholdengo (max SpA 203) with 80 BP Shadow Ball does around 60-70% damage? Let's estimate: 203 SpA vs 113 SpD. 80 BP. Neutral. Damage is roughly 60-70%. So I can survive one hit. Nasty Plot is the best play to ensure the KO.
    
        Let's check the prompt again: "shadowball ... super effective on gholdengo". If it's super effective, it's even stronger. But I'll stick with Nasty Plot.
    
        Actually, let's look at the options. Nasty Plot is option 1. Shadow Ball is option 2.
        I'll choose Nasty Plot.
    
        Wait, is there a reason to switch? Rotom-Wash is fast and can hit hard, but Gholdengo is a better matchup against the remaining threats (Snorlax, Dragapult, Volcarona) due to its typing and bulk. Kingambit is slow and weak to the remaining threats (Dragapult, Volcarona). So staying in Gholdengo is correct.
    
        Final decision: Nasty Plot.
    
        Let's double check. If I Nasty Plot, my SpA goes from 203 to 304 (with 2 stages). That's insane. Next turn Shadow Ball or Focus Blast (if they switch to something weak to Fighting) will KO almost anything.
        Yes, Nasty Plot is the best play.
    
        Action: MOVE: nastyplot
    
    Solar Pro 4 switched to Rotom8,047 tok · 53.3 s · $0.0020

    Gholdengo fainted, so Kingambit gets Supreme Overlord boosts, but it's slower than Gholdengo and will take a Shadow Ball hit first. Rotom-Wash outspeeds Gholdengo's possible speed range (138 vs 93-149) and can immediately retaliate with strong special attacks. Switching to Rotom-Wash gives me a speed advantage and immediate offensive pressure.

    Reasoning trace (634 words)
    The user wants me to make a decision for Turn 2 of a Pokémon battle. Let me analyze the situation:
    
    - My Gholdengo fainted from the opponent's Gholdengo's Shadow Ball
    - I need to switch to one of my remaining Pokémon: kingambit or rotomwash
    - The opponent's Gholdengo has revealed Shadow Ball and has Good as Gold ability (immune to status)
    - The opponent's Gholdengo is at 100% HP
    
    Let me think about which switch is better:
    
    **Kingambit:**
    - Dark/Steel typing - resistant to Ghost (Shadow Ball does neutral damage to Steel, but Ghost moves are super effective against Dark... wait, no. Ghost is neutral against Dark and Steel. Actually, Ghost moves are super effective against Dark, but Steel resists Ghost? No, Steel is neutral to Ghost. Dark is weak to Ghost. So Kingambit takes neutral damage from Shadow Ball.)
    - Actually, let me reconsider: Ghost moves are super effective against Dark types, and neutral against Steel. So Kingambit (Dark/Steel) takes neutral damage from Shadow Ball.
    - Kingambit has Supreme Overlord ability which boosts stats when allies faint - Gholdengo just fainted, so Kingambit gets stat boosts!
    - Kingambit is slower than Gholdengo (102 vs 136-149 speed range), so it will likely take a hit first
    - Kingambit's moves: Sucker Punch (priority), Iron Head, Foul Play, Swords Dance
    
    **Rotom-Wash:**
    - Electric/Water typing - weak to Ghost? No, Ghost is neutral against Electric and Water. So Rotom takes neutral damage from Shadow Ball.
    - Rotom-Wash is faster (138 speed) than Gholdengo's possible speed range (93-149), so it might outspeed
    - Rotom-Wash has high special attack (172) and can hit hard with Thunderbolt, Hydro Pump, Shadow Ball, Volt Switch
    - Damp Rock prevents rain, but there's no rain currently
    
    Given that:
    1. Gholdengo just fainted, so Kingambit gets Supreme Overlord boosts (likely +1 to all stats)
    2. Kingambit is a better defensive switch against Gholdengo (Steel typing helps against many things, and it's 4x resistant to Fairy, immune to Poison)
    3. However, Kingambit is slower and will likely take a Shadow Ball hit first
    4. Rotom-Wash is faster and can potentially outspeed and hit back hard
    
    The opponent's Gholdengo has Shadow Ball revealed. If I switch to Kingambit, it takes neutral damage from Shadow Ball but gets Supreme Overlord boosts. If I switch to Rotom-Wash, it also takes neutral damage but can outspeed.
    
    Actually, considering the meta and the fact that Kingambit just got Supreme Overlord boosts from Gholdengo fainting, Kingambit becomes much stronger. But it's still slower than Gholdengo.
    
    Rotom-Wash seems like the better option here because:
    1. It's faster and can potentially outspeed Gholdengo
    2. It has higher special attack to threaten Gholdengo back
    3. Gholdengo's Good as Gold makes it immune to status, so Sucker Punch or Swords Dance on Kingambit might be less effective if Gholdengo just hits hard
    
    Actually, let me reconsider. Kingambit with Supreme Overlord boosts becomes a monster. Its attack and defense go up. Sucker Punch is priority so speed doesn't matter for that move. Kingambit could potentially set up with Swords Dance or hit with Sucker Punch/Iron Head/Foul Play.
    
    But Rotom-Wash outspeeds and can hit Gholdengo with Thunderbolt or Hydro Pump. Gholdengo is weak to Ghost (but Rotom already has Shadow Ball), and Steel/Ghost is weak to Ground, Ghost, Dark. Rotom-Wash's Electric and Water moves are neutral against Gholdengo.
    
    I think Rotom-Wash is the better switch here because of speed advantage and ability to fire back immediately. Kingambit would be taking a hit first and relying on Supreme Overlord boosts to come back.
    
    Let me go with Rotom-Wash.
    
    Wait, I need to format this correctly. The legal actions are:
    1. SWITCH: kingambit (100.0% HP)
    2. SWITCH: rotomwash (100.0% HP)
    
    I should output:
    <thought>
    ...short thought...
    </thought>
    <decision>
    SWITCH: rotomwash
    </decision>
    
    Let me keep the thought short and concise.
  4. Turn 3
    PokéChamp used Shadowball
    Solar Pro 4 used Hydropump2,276 tok · 9.3 s · $0.0004

    Gholdengo is Steel/Ghost, so Shadow Ball is useless (immune) and Thunderbolt is not very effective (Steel resists Electric). Voltswitch has the same type disadvantage and loses my Rotom-Wash. Switching to Kingambit is a bad matchup since Gholdengo almost certainly runs Focus Blast (super effective against Dark/Steel). Hydropump is the only move that can deal meaningful damage—neutral vs Ghost, resisted by Steel but Rotom-Wash's massive SpA (172) compensates. The 80% accuracy is a risk, but it's the best offensive option available.

    Reasoning trace (335 words)
    The opponent's Gholdengo has only revealed Shadow Ball so far. I need to consider what moves it likely has. Gholdengo typically runs Shadow Ball, Focus Blast, Recover, and either Nasty Plot or Thunder Wave. Since it already used Shadow Ball last turn and my Gholdengo used Nasty Plot before fainting, this Gholdengo likely has Focus Blast and Recover as well.
    
    Rotom-Wash is faster (138 vs 93-149), so I'll likely move first. The key consideration: Gholdengo is Steel/Ghost, so it's immune to Ghost (Shadow Ball won't work) and resistant to Steel-type moves. It's weak to Fire and Ground, but I don't have those.
    
    My options:
    - Thunderbolt: Not very effective against Steel/Ghost (Steel resists Electric)
    - Hydropump: Not very effective against Steel (Steel resists Water), but neutral vs Ghost. 80% accuracy is risky.
    - Shadowball: Useless against Ghost-type Gholdengo (immune)
    - Voltswitch: Same issue as Thunderbolt (not very effective), plus I switch out
    - Switch to Kingambit: Kingambit is Dark/Steel, weak to Fighting (Focus Blast) and Ghost (Shadow Ball). Gholdengo likely has Focus Blast which is super effective against Kingambit. Bad matchup.
    
    The best option here is Hydropump. It's the only move that can do significant damage. Gholdengo resists Water (0.5x) but takes neutral damage from the Ghost half. With Rotom-Wash's high SpA (172) and Gholdengo's unknown SpD, Hydropump could do meaningful damage. The 80% accuracy is a concern, but it's the best offensive option available.
    
    Actually, let me reconsider. Thunderbolt is also not very effective (Steel resists Electric). Shadowball is useless (Ghost immune). Voltswitch is not very effective and I lose my Rotom-Wash. Switching to Kingambit is terrible because Gholdengo almost certainly has Focus Blast.
    
    Hydropump is the best choice despite the accuracy risk and not-very-effective matchup. It's the only move that can actually hurt Gholdengo.
    
    Wait, I should also consider that Gholdengo's Speed is 93-149. If it's faster than 138, it could move first and potentially hit me with Shadow Ball or Focus Blast. But I have to take the risk.
    
    Hydropump it is.
  5. Turn 4
    PokéChamp used Shadowball
    Solar Pro 4 used Shadowball4,378 tok · 35.0 s · $0.0011

    Gholdengo is at 43% HP and Rotom-W has high Special Attack (172). Shadow Ball is super effective against Gholdengo's Ghost typing and has a 20% chance to lower its Sp. Def, increasing the chance of a knockout. Switching to Kingambit is risky because it is much slower than Gholdengo and will likely take a heavy Shadow Ball hit before moving. Staying in and attacking with Shadow Ball gives the best chance to eliminate the threat immediately.

    Reasoning trace (1,352 words)
    Thinking Process:
    
    1.  **Analyze the Battle State:**
        *   **My Active:** Rotom-Wash (41.6% HP, SPD -1). Moves: Thunderbolt, Hydro Pump, Shadow Ball, Volt Switch.
        *   **Opponent Active:** Gholdengo (43% HP). Moves: Shadow Ball (revealed). Item: Leftovers. Ability: Good as Gold (immune to status).
        *   **Opponent Bench:** Kingambit (fainted). 1 more Pokémon coming in from: Rotom-Wash, Snorlax, Dragapult, Volcarona.
        *   **My Bench:** Kingambit (100% HP, Scopelens, Supreme Overlord).
        *   **Context:** Turn 4. Gholdengo just healed to 43% via Leftovers. Rotom-W is at 52/125 HP with a -1 Speed drop from a previous Shadow Ball.
        *   **Speed:** Rotom-W (138) vs Gholdengo (93-149). Rotom-W is likely faster unless Gholdengo is max speed (149), but even then, it's close. However, Rotom-W has a -1 Speed drop, so effective speed is lower. Wait, Rotom-W base speed is 138. Gholdengo base speed is 136. At level 50, Rotom-W is likely faster unless Gholdengo has a massive speed investment and Rotom-W doesn't. But Rotom-W has a -1 Speed drop. Let's assume Gholdengo might move first or second.
        *   **Threat:** Gholdengo has Shadow Ball. It just healed. It's at 43%. Rotom-W is at 41.6%. If Gholdengo moves first and uses Shadow Ball (80 BP), it could OHKO or 2HKO Rotom-W depending on the exact stats and SpD. Rotom-W has Damprock (no rain currently).
        *   **Options:**
            1.  Thunderbolt (90 BP, 10% Para). Not very effective against Steel/Ghost? Wait, Gholdengo is Steel/Ghost. Thunderbolt is neutral against Steel and Ghost. So neutral damage.
            2.  Hydro Pump (110 BP, 80% acc). Neutral against Steel/Ghost.
            3.  Shadow Ball (80 BP, 100% acc, SE against Ghost). Gholdengo is Ghost/Steel. Shadow Ball is super effective against Ghost. This is the best damage option. 20% chance to lower SpD.
            4.  Volt Switch (70 BP, 100% acc). Switches out after damaging.
            5.  Switch to Kingambit.
    
    2.  **Evaluate Options:**
        *   **Shadow Ball:** Super effective against Gholdengo's Ghost typing. Gholdengo is at 43%. Rotom-W has high SpA (172). Shadow Ball should deal significant damage. If it knocks out Gholdengo, great. If not, Rotom-W is still alive. Gholdengo's Shadow Ball is a threat, but Rotom-W has higher SpA and can potentially KO or severely cripple Gholdengo. Also, Shadow Ball has a 20% SpD drop chance, which helps if Gholdengo survives.
        *   **Volt Switch:** Allows me to switch to Kingambit safely. Kingambit is a great counter to Gholdengo? Kingambit is Dark/Steel. Gholdengo is Steel/Ghost. Kingambit resists Ghost (Steel resists Ghost? No, Steel resists Ghost? Wait. Ghost is neutral to Steel. Steel is neutral to Ghost. Dark is neutral to Ghost. So Kingambit takes neutral damage from Shadow Ball. Kingambit's Supreme Overlord boosts attack when allies faint. Gholdengo's Kingambit fainted earlier, so Kingambit already has a boost? Wait, the opponent's Kingambit fainted in Turn 1. My Kingambit is on the bench. Supreme Overlord boosts ATK when an ally faints. My Kingambit's ally (Gholdengo) fainted in Turn 2. So Kingambit already has a +1 or +2 Attack boost? Actually, Supreme Overlord boosts attack when an ally faints. My Gholdengo fainted in Turn 2. So Kingambit should have a boost. But Kingambit is on the bench. If I switch to Kingambit, it will face Gholdengo. Kingambit's moves: Sucker Punch, Iron Head, Foul Play, Swords Dance. Kingambit is slower than Gholdengo? Kingambit base speed 75. Gholdengo base speed 136. Kingambit is much slower. It will likely take a Shadow Ball before moving. Kingambit has high HP (175) and good defenses, but Shadow Ball is special. Kingambit's SpD is 105. Gholdengo's SpA is up to 203. A super effective? No, Shadow Ball is neutral against Steel/Dark. But it's still strong. Kingambit might survive one hit, but it's risky.
        *   **Switching to Kingambit now:** If I switch to Kingambit, Gholdengo will use Shadow Ball. Kingambit takes neutral damage. Kingambit might survive. Then Kingambit can use Sucker Punch or Iron Head. But Kingambit is slow. Gholdengo might KO Kingambit if it's a max attack Gholdengo.
        *   **Staying in and attacking:** Rotom-W is faster (likely). If I use Shadow Ball, it's super effective. Gholdengo is at 43%. Rotom-W's SpA is 172. Shadow Ball base 80. With SpA 172, it's roughly 172/100 * 80 = ~137 damage before defenses. Gholdengo's SpD is up to 157. So it might not KO, but it will hurt. If Gholdengo survives, it uses Shadow Ball back. Rotom-W is at 41.6%. It might faint.
        *   **Volt Switch:** If I Volt Switch, I deal damage and switch to Kingambit. This mitigates the risk of Rotom-W taking a hit. But Volt Switch is only 70 BP. It might not do enough damage to prevent Gholdengo from threatening Kingambit. Also, Kingambit is slow, so Gholdengo will likely move first and hit Kingambit.
        *   **Best Option:** Shadow Ball. It's super effective, high accuracy, and Rotom-W is likely faster. If it KO's, great. If not, the SpD drop helps. Switching to Kingambit is risky because Kingambit is slow and will likely take a full-power Shadow Ball from a healthy Gholdengo. Rotom-W has better speed and special attack. Let's try to knock out Gholdengo with Shadow Ball.
    
    3.  **Refining the Decision:**
        *   Gholdengo is 43% HP.
        *   Rotom-W is 41.6% HP.
        *   Shadow Ball is super effective.
        *   Rotom-W SpA is 172.
        *   Gholdengo SpD is unknown but max 157.
        *   Damage calculation roughly: (200 * 172/100 * 80/100) / (Gholdengo SpD/100) + 2. If SpD is 100, damage is ~275. Gholdengo HP is 162-194. So it's very likely a KO if SpD is average or low. If SpD is max (157), damage is ~175. Gholdengo HP min is 162. So it might be a KO even at max SpD and min HP. Wait, 175 > 162. So it's likely a KO.
        *   Therefore, Shadow Ball is the best move to try and end the threat.
    
    4.  **Final Check:**
        *   Move: shadowball
        *   Reasoning: Super effective, high chance to KO Gholdengo given Rotom-W's high SpA and Gholdengo's moderate HP/SpD. Volt Switch is weaker and switching to Kingambit is risky due to speed disadvantage.
    
    5.  **Format:**
        *   <thought> ... </thought>
        *   <decision> MOVE: shadowball </decision>
    
        Wait, the prompt says "Choose exactly one action from LEGAL ACTIONS." and "Your <decision> block must contain exactly one action line, copied from LEGAL ACTIONS without its number".
        Legal action 3 is: `MOVE: shadowball | Ghost, Special, power 80, 100% accuracy, super effective on gholdengo | 20% chance to lower the target's Sp. Def by 1.`
        So I should write `MOVE: shadowball`.
    
        Let's double check speed. Rotom-W base 138, Gholdengo base 136. Rotom-W has -1 Speed. So effective speed is lower. If Gholdengo is max speed (149) and Rotom-W is min speed (111? No, base 138 at level 50 is 138*2+31 = 307? Wait, level 50 stats: Base * 2 + 31. Rotom-W Spe: 138*2+31 = 307. With -1, it's 307/2 = 153.5. Gholdengo Spe: 136*2+31 = 273 (min) to 299 (max? No, base 136, max IVs 31, so 136*2+31+31? No, level 50 stat formula: (Base * 2 + IV + EV/4) * Level / 100 + 5. For level 50: Base * 2 + IV + EV/4 + 5. Max EV is 252, so EV/4 = 63. So max stat = Base*2 + 31 + 63 + 5 = Base*2 + 99. Min stat = Base*2 + 0 + 0 + 5 = Base*2 + 5.
        Rotom-W Spe: Base 138. Min: 281. Max: 375. With -1, it's halved? No, -1 is 0.5x. So 140.5 to 187.5.
        Gholdengo Spe: Base 136. Min: 277. Max: 371.
        So Gholdengo can be faster than Rotom-W if Rotom-W has low EV and Gholdengo has high EV. But Rotom-W is likely faster in most cases. Even if Gholdengo moves first, Shadow Ball is the best damage. If I switch to Kingambit, Kingambit is base 75, so it's much slower and will definitely take a hit.
        I'll stick with Shadow Ball.
    
        One more thing: Gholdengo has Good as Gold, so it's immune to status. Shadow Ball's 20% SpD drop is not a status move, it's a secondary effect of a damaging move, so it should work. (Good as Gold only blocks status moves like Toxic, Thunder Wave, etc., not secondary effects of attacks).
    
        Decision: MOVE: shadowball.
    PokéChamp switched to Rotom
  6. Turn 5
    PokéChamp used Thunderbolt
    Solar Pro 4 used Thunderbolt2,495 tok · 12.2 s · $0.0004

    Opponent's Rotom-Wash is at full HP, mine is at 41.6% with -1 SPD. Hydro Pump is not very effective on Rotom-Wash, so that's out. Thunderbolt is a solid neutral hit with paralysis chance, which could help if the opponent outspeeds me (their speed range 95-151 vs my 138). Shadow Ball is also neutral but less power. Volt Switch would damage and switch to Kingambit, but Kingambit is slower (102) and might get hit hard. Thunderbolt is the safest option to pressure the opponent while staying in.

    Reasoning trace (397 words)
    The opponent's Rotom-Wash is at full HP. My Rotom-Wash is at 41.6% HP with a -1 SPD boost. I need to consider the matchup.
    
    My Rotom-Wash has Thunderbolt, Hydro Pump, Shadow Ball, and Volt Switch. The opponent's Rotom-Wash is Electric/Water type, so Hydro Pump is not very effective. Thunderbolt is neutral. Shadow Ball is neutral. Volt Switch is neutral but switches me out.
    
    The opponent's Rotom-Wash has unknown moves and unknown item. It could have Volt Switch, Hydro Pump, Thunderbolt, or other moves. Since it's a Rotom-Wash, it likely has similar moves.
    
    Given that my Rotom-Wash is at 41.6% HP and the opponent's is at 100%, I need to be careful. If I use Hydro Pump, it's not very effective and could leave me open. Thunderbolt is a solid neutral hit. Shadow Ball has a chance to lower SpD.
    
    However, the opponent's Rotom-Wash could potentially outspeed me (95-151 speed range vs my 138). If it's faster, it could hit me back hard.
    
    I should consider switching to Kingambit, which is at 100% HP. Kingambit is Dark/Steel and could handle Rotom-Wash well, especially with Sucker Punch or Iron Head. But Kingambit is slower (102 speed) and might get hit first.
    
    Actually, let me think about this more carefully. The opponent's Rotom-Wash is at full HP and has unknown moves. If I attack with Thunderbolt, I might knock it out or damage it significantly. But if it outspeeds me, it could hit me back.
    
    Given the uncertainty, I think Thunderbolt is a reasonable choice - it's a solid neutral hit with paralysis chance. If I paralyze it, that could help with the speed issue.
    
    Actually, wait - I should consider Volt Switch. If I use Volt Switch, I can damage the opponent and switch to Kingambit, which might be a better matchup. But Volt Switch only does 70 power, and I'd be switching to a slower Pokémon.
    
    Let me go with Thunderbolt - it's the safest bet to damage the opponent while staying in. If I paralyze it, great. If not, I'll see what it does next turn.
    
    Actually, I need to reconsider. The opponent's Rotom-Wash could have Volt Switch too, and if it's faster, it could switch out after hitting me. But I don't know its moveset yet.
    
    I'll go with Thunderbolt as it's a reliable neutral hit with paralysis chance, which could help with the speed uncertainty.
    Solar Pro 4 switched to Kingambit1,987 tok · 5.8 s · $0.0002

    My Rotom-Wash fainted, leaving Kingambit as the only available Pokémon on my bench. I must switch to it to continue the battle.

    Reasoning trace (181 words)
    Thinking Process:
    
    1.  **Analyze the Battle State:**
        *   **My Side:** Rotom-Wash just fainted. Bench has Kingambit (100% HP) and Gholdengo (fainted).
        *   **Opponent's Side:** Rotom-Wash is active at 44% HP. Moves: Thunderbolt (revealed). Item unknown. Ability Levitate.
        *   **Turn:** 5.
        *   **Legal Actions:** Only one legal action: SWITCH: kingambit.
    
    2.  **Evaluate the Situation:**
        *   My active Pokémon (Rotom-Wash) is dead.
        *   The only legal action is to switch to Kingambit.
        *   There is no choice to make here; the rules dictate I must choose from LEGAL ACTIONS, and there's only one.
    
    3.  **Formulate the Output:**
        *   Thought: My Rotom-Wash fainted, leaving Kingambit as the only available Pokémon on my bench. I must switch to it to continue the battle.
        *   Decision: SWITCH: kingambit
    
    4.  **Check Constraints:**
        *   Thought length: 2-4 short sentences.
        *   Decision format: Exactly one action line from LEGAL ACTIONS.
        *   Action: SWITCH: kingambit matches the legal action.
    
    5.  **Final Output Generation:**
        *   <thought>My Rotom-Wash fainted, leaving Kingambit as the only available Pokémon on my bench. I must switch to it to continue the battle.</thought>
        *   <decision>SWITCH: kingambit</decision>
    
  7. Turn 6
    PokéChamp used Hydropump
    Solar Pro 4 used Suckerpunch2,210 tok · 6.1 s · $0.0003

    Rotom-Wash is at 44% HP and only has Thunderbolt revealed. Kingambit has priority with Sucker Punch, which guarantees it moves first regardless of the unknown speed tie. With Supreme Overlord (+10%) and Scope Lens (crit boost), Sucker Punch has a strong chance to KO or severely cripple Rotom-Wash before it can fire off Thunderbolt. Foul Play is weaker here since Rotom isn't physically bulky, Iron Head is not very effective, and Swords Dance leaves Kingambit vulnerable to a guaranteed Thunderbolt.

    Reasoning trace (194 words)
    The opponent's Rotom-Wash is at 44% HP and has only revealed Thunderbolt so far. Kingambit has Supreme Overlord active (one ally fainted, so +10% power) and Scope Lens. Rotom-Wash's speed is uncertain (95-151), so it could be faster or slower than Kingambit's 102.
    
    Sucker Punch is priority +1, so it will go first regardless of speed. It's Dark-type physical, and Rotom-Wash is Electric/Water — no weakness to Dark, but Sucker Punch has priority and will hit before Rotom can use Thunderbolt. At 44% HP, Rotom-Wash is fragile enough that a priority hit could knock it out or severely damage it.
    
    Foul Play uses the target's Attack stat, which is good against physically defensive walls, but Rotom-Wash isn't particularly physically defensive. Iron Head is only 20% effective against Rotom-Wash (Steel moves are not very effective against Water/Electric). Swords Dance is a setup move, but leaving Kingambit exposed to Thunderbolt is risky.
    
    The best play is Sucker Punch — priority ensures it goes first, and with Supreme Overlord (+10%) and Scope Lens (crit boost), it has a good chance to KO or heavily damage Rotom-Wash before it can retaliate with Thunderbolt.
    
    </thought>
    <decision>
    MOVE: suckerpunch
    </decision>