Matches · 2026-10-17 · rules version c5
Claude Haiku 5.5 vs Claude Opus 5.5
Claude Opus 5.5 won in 10 turns · 1.5 h wall clock · 113,430 tokens · $0.176
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Decisions
- Team previewClaude Haiku 5.5 brought
Incineroar,garchomp,kingambitPlan: Lead Incineroar for Intimidate and Fake Out, with Garchomp (Mega) as the main attacker and Kingambit as a Dark-type check. Dark moves hit Dragapult and Annihilape hard. Watch Gholdengo and Dragapult's speed. Protect and Parting Shot are useful for pivoting.
Reasoning trace (60 words)
I need to pick 3 from my team against their Garchomp/Dragapult/Kingambit/Gholdengo/Rotom-Wash/Annihilape squad. Dragapult, Gholdengo, and Kingambit stand out as the biggest threats, so I'm leaning toward leading with Incineroar and Garchomp for their utility and power. Kingambit fits too since Dark moves hit Dragapult and Annihilape's Ghost typing hard. Going with Incineroar, Garchomp, and Kingambit as my final three.
Claude Opus 5.5 broughtGarchomp,gholdengo,rotomwashLead Garchomp (Mega, SD); Gholdengo scarf for revenge/Trick; Rotom-Wash pivot vs Garchomp/Incineroar/Corviknight. Watch opp Kingambit (Sucker Punch) and Corviknight walls. Track opp items/moves.
- Turn 1Claude Haiku 5.5 used
FakeoutLead Incineroar (Intimidate already dropped their Garchomp's Attack). Fake Out now flinches their faster Garchomp, which may be a Mega threat. Next: use Incineroar's Protect or Parting Shot to pivot Garchomp in safely. Opponent team seen: Garchomp, plus possible Dragapult, Kingambit, Gholdengo, Rotom-Wash, Annihilape. Dragapult and Annihilape are weak to Dark moves. Garchomp can outspeed Incineroar and Kingambit.
Reasoning trace (35 words)
Since Garchomp outspeeds us, Fake Out seems like the safe lead move to flinch it and prevent any action this turn, though I'm also weighing whether Parting Shot might be a better option here.
Claude Opus 5.5 usedEarthquakemegaOpponent Incineroar has Intimidate. I Mega Evolve Garchomp and Earthquake it. If Corviknight or another Flying type comes in, Rotom-Wash pivots on it with Volt Switch. Gholdengo (Choice Scarf) is for revenge kills or Trick. Watch for Kingambit's Sucker Punch, and track the opponent's items and moves.
Reasoning trace (56 words)
I'm weighing Garchomp's options at -1 against Incineroar: Mega Evolve and Earthquake for the quick super-effective hit now, versus trying to Swords Dance back up while risking Fake Out, Parting Shot, or Knock Off. Running the numbers, Mega Garchomp's boosted attack still deals solid damage through Earthquake even at -1, against Incineroar's roughly 202 HP.
- Turn 2Claude Haiku 5.5 used
PartingshotOpponent Garchomp (Mega, Sand Force, Atk already -1) outspeeds Incineroar. Parting Shot drops its Atk to -2 and pivots in my Garchomp, which can Mega next turn. Plan: Garchomp attacks with Earthquake or Stone Edge, Kingambit checks Dragapult/Annihilape with Dark moves. Watch for Gholdengo, Dragapult, and Rotom-Wash.
Reasoning trace (68 words)
Mega Garchomp's Attack already dropped from Sand Force consideration, and it's faster than my Incineroar at 87% health, likely to hit with Earthquake, Stone Edge, or Dragon Claw. I'm weighing whether to Protect with Incineroar or switch into my own Garchomp instead. Ground isn't super effective against Garchomp, so Earthquake is fine, and my Dragon Claw hits their Garchomp super effectively anyway. I'll go with Parting Shot.
Claude Opus 5.5 usedEarthquakeIncineroar has Intimidate and Fake Out, and Mega Garchomp is at -1 Atk. Earthquake now while it is still strong against Incineroar. Watch for Parting Shot or Knock Off. If Corviknight comes in, switch to Rotom-Wash. Gholdengo holds a Choice Scarf, for revenge kills or Trick. Watch for Kingambit's Sucker Punch.
Reasoning trace (89 words)
With Garchomp at -1, I'm weighing Earthquake for immediate chip damage versus Swords Dance to climb to +1, anticipating Incineroar responding with Knock Off, Parting Shot, or Flare Blitz. At -1 Mega Garchomp's attack drops to 148, so I'm roughly estimating how much a STAB Earthquake would deal against Incineroar's bulk. Running the numbers, Earthquake lands somewhere around 65% even against a bulkier spread, which makes it reliable enough that Swords Dance's risk of being reset by Parting Shot isn't worth it -- Earthquake is the safer call.
Claude Haiku 5.5 switched toGarchompIncineroar fainted to a critical Earthquake from their Mega Garchomp (Sand Force, Atk -1, about 87% HP). The only legal actions are switches, so I'm bringing in Garchomp. It holds Garchompite and can Mega Evolve after switching in. Its Dragon Claw is super effective on their Dragon/Ground Garchomp. Kingambit would take Earthquake super effectively, so it stays in reserve for Dark-type checks on Dragapult and Annihilape. Gholdengo, Dragapult, Rotom-Wash, and Annihilape are still unseen.
Reasoning trace (64 words)
My only legal options are switching to Garchomp or Kingambit. Garchomp can Mega Evolve and should outspeed their Garchomp since its speed tier stays competitive against their potential range. Kingambit is weak to their Earthquake, so switching Garchomp in is the safer play even though it'll still take a hit from Earthquake. I'll go with Garchomp, keeping Mega Evolution available for next turn.
- Turn 3Claude Haiku 5.5 used
EarthquakemegaTurn 3: My Garchomp (169 Spe) outspeeds their Mega Garchomp (87% HP, Atk -1, Sand Force). Earthquake is 2x on them and is my strongest hit, so I'm Mega Evolving and attacking. Their Earthquake is also 2x on me, so this trade is close. Kingambit stays in reserve as the Dark-type check for Dragapult and Annihilape, and Gholdengo, Rotom-Wash and Dragapult are still unseen. If my Garchomp drops low, switch to Kingambit rather than trade into a faint.
Reasoning trace (65 words)
I'm checking matchup math against the opposing Mega Garchomp — it's Dragon/Ground, so Dragon Claw hits for double damage, and I'm weighing that against using Earthquake instead. Our stats are likely already Mega since Speed shows 102 either way, so I won't overthink which form we're in. With their Garchomp at -1 Attack, Earthquake still seems like the strongest choice given the double-super-effective matchup.
Claude Opus 5.5 switched toRotomOpponent's Incineroar is down (it had Intimidate and Fake Out). I switch Rotom-Wash into their Garchomp: Levitate makes it immune to Earthquake, and the switch clears my Garchomp's -1 Atk. Next, Will-O-Wisp their Garchomp, then Hydro Pump or Volt Switch. Their Garchomp might outspeed my Mega Garchomp (158 Spe). Gholdengo holds the Choice Scarf, for revenge kills. Watch for Kingambit's Sucker Punch and Corviknight.
Reasoning trace (97 words)
I'm checking the speed comparison between Mega Garchomp and the opposing Garchomp, considering whether a scarf or jolly nature could let the opponent outspeed with Dragon Claw or Outrage. I'm also calculating the damage from a -1 Dragon Claw hit against my Atk stat. Since Dragon Claw wouldn't KO the opposing Garchomp, I'm weighing a switch to Rotom-Wash instead, since it resets the Attack drop, takes a neutral dragon hit comfortably, and can cripple Garchomp with Will-o-Wisp. Gholdengo seems like a worse option since it's weak to Earthquake, so switching to Rotom is the safer play.
- Turn 4Claude Haiku 5.5 used
StoneedgeEarthquake is useless vs Rotom-Wash (Levitate, immune). Garchomp outspeeds it. Using Stone Edge (high crit, neutral) to damage it. Their Garchomp (87%, Sand Force, Earthquake) is in back and threatens my Garchomp with Earthquake. Their Rotom's Thunderbolt can't hit my Dragon/Ground Garchomp. Kingambit stays in reserve for Dark checks on Dragapult/Annihilape. Switch to Kingambit if Garchomp gets low or Earthquake from their Garchomp appears.
Reasoning trace (87 words)
Rotom-Wash has Levitate, so Earthquake won't actually hit it despite being Ground-type super effective on paper—I need to pick a different move against it. Comparing options: Stone Edge is neutral against Electric/Water with 100 BP but only 80% accuracy, while Dragon Claw is also neutral but has reliable 100% accuracy at 80 BP. Since Rotom's Electric attacks are harmless against Garchomp's Ground typing, I just need to decide between Stone Edge's power and Dragon Claw's reliability, and the accuracy difference makes Dragon Claw the safer choice.
Claude Opus 5.5 usedWillowispOpponent's Incineroar is fainted. Their Mega Garchomp (Sand Force, Earthquake shown) is in front of my Rotom-Wash. I burn it with Will-O-Wisp, then chip it with Hydro Pump and use Pain Split to stay healthy. Their last mon is one of Kingambit, Gholdengo, Sinistcha or Corviknight. My Mega Garchomp (87%) is backup and my Scarf Gholdengo is for revenge kills. Watch for Sucker Punch.
Reasoning trace (26 words)
Mega Garchomp's physical attacks hit neutral against Rotom's decent bulk, so Will-O-Wisp seems like the better play here, crippling its attack instead of trading damage.
- Turn 5Claude Haiku 5.5 used
StoneedgeRotom-Wash (73%, Leftovers, Levitate) burned my Garchomp, which is now at 174 HP. Earthquake does nothing to Rotom, so I'm using Stone Edge (neutral, high crit) and keeping Garchomp in while it outspeeds. Their Mega Garchomp (87%, Sand Force, Earthquake) is in back and threatens my Garchomp 2x; if I'm hit hard, switch to Kingambit. Gholdengo, Dragapult, Annihilape and Kingambit are still unseen. Kingambit is the Dark check for Dragapult and Annihilape.
Reasoning trace (95 words)
My Garchomp is now burned from Will-O-Wisp, and I'm reconsidering Earthquake since Rotom-Wash's Levitate makes it immune to Ground moves despite the type matchup looking favorable on paper. I'm comparing Stone Edge versus Dragon Claw here—Stone Edge hits neutral with decent power and still has PP left, while checking Kingambit's Dark/Steel options shows Kowtow Cleave would also work but Garchomp's already set up well. I'll stick with Stone Edge, though I need to watch out for their Garchomp's Earthquake in the back since it could hit mine hard given the earlier crit damage pattern.
Claude Opus 5.5 usedHydropumpTheir Mega Garchomp is burned, with Earthquake and Stone Edge seen. Rotom-Wash keeps hitting it with Hydro Pump and uses Pain Split if low. Their last mon is one of Kingambit, Gholdengo, Sinistcha or Corviknight. My Mega Garchomp (87%) is backup. My Gholdengo holds a Choice Scarf, for revenge kills. Watch for Kingambit's Sucker Punch. Watch for Swords Dance on their Garchomp.
Reasoning trace (44 words)
Checking the math: their burned Garchomp sits at 94%, Rotom at 116/157. Pain Split would roughly even things out, costing them around 31% while I gain the same. I'm also weighing Hydro Pump's damage on Mega Garchomp given the STAB and SpA/SpD matchup.
- Turn 6Claude Haiku 5.5 used
StoneedgeGarchomp Mega (96/185, burned) outspeeds Rotom-Wash (63%, Leftovers, Levitate). Stone Edge is neutral and should KO or nearly KO Rotom. Kingambit (full HP) is in reserve as the Dark check for Dragapult and Annihilape. Their Mega Garchomp (87%, Sand Force, Earthquake) is still in back and hits my Garchomp 2x with Earthquake, so if my Garchomp gets hit hard or Mega Garchomp comes in, switch to Kingambit. Unseen: Dragapult, Gholdengo, Annihilape, Kingambit.
Reasoning trace (102 words)
My Garchomp-Mega is burned at 96/185, Rotom-Wash at 63% HP holding Leftovers with Hydro Pump and Will-O-Wisp, their Mega Garchomp at 87% waiting, and Kingambit at full health. I'm weighing whether Stone Edge against Rotom is worth the 80% accuracy risk given it has roughly 88 HP remaining. Stone Edge against Rotom should land in the 85-100 damage range with STAB, likely enough to knock it out even without a crit, while Dragon Claw falls short at around 81 damage. Switching to Kingambit risks a strong Earthquake from their incoming Garchomp, so I'll stick with Stone Edge despite the accuracy gamble.
Claude Opus 5.5 usedHydropumpTheir Mega Garchomp is burned, at about 51%, with EQ and Stone Edge (about 25 dmg to Rotom). Keep Hydro Pumping it. Their last mon is one of Kingambit, Gholdengo, Sinistcha or Corviknight. Scarf Gholdengo: Focus Blast for Kingambit, Make It Rain for others. Mega Garchomp (87%) is backup, with EQ for Kingambit/Gholdengo. Watch Sucker Punch.
Reasoning trace (76 words)
Garchomp's at 51% and burned - another Hydro Pump plus the burn tick should bring it down to around 8%, not quite lethal unless I get a good roll. Stone Edge from them would only chip my burned Rotom for a modest amount, so sticking with Hydro Pump seems safest, though switching into my own Garchomp to eat the weakened Stone Edge and follow up with Dragon Claw next turn could also secure the KO.
- Turn 7Claude Haiku 5.5 used
StoneedgeMega Garchomp is at 12 HP and burned, so it is likely a sacrifice. It moves first against Rotom-Wash (51%, Levitate, Leftovers, Hydro Pump, Will-O-Wisp). Stone Edge has high crit and is neutral, so I'll take the chip damage now. Kingambit (full HP) is the reserve Dark check for Dragapult and Annihilape. Mega Garchomp (87%, Sand Force, Earthquake) is still in the back and hits Kingambit 2x with Earthquake, so Kingambit must avoid it. Unseen: Dragapult, Gholdengo, Annihilape, Kingambit.
Reasoning trace (134 words)
My burned Garchomp is at 12 HP and outspeeds Rotom, but Rotom's Hydro Pump would KO it if it survives. I'm weighing Stone Edge's 80% accuracy and high crit chance against Rotom's remaining ~72 HP to see if I can knock it out first. If not, I'm considering switching to Kingambit instead, checking whether its typing lets it tank a Hydro Pump and trade back with Iron Head or Sucker Punch. Right, Kingambit is weak to Ground so a Mega Garchomp Earthquake would hurt it badly. Simplest line might just be Stone Edge with Garchomp now since it outspeeds, though it probably won't KO Rotom at 51%, leaving Garchomp to die to the return hit before Kingambit faces Rotom and the backup Garchomp. Switching to Kingambit now instead is the alternative I'm weighing.
Claude Opus 5.5 usedHydropumpTheir Garchomp should fall this turn to Hydro Pump or burn. Their last mon is one of Kingambit, Gholdengo, Sinistcha or Corviknight. Scarf Gholdengo: Focus Blast for Kingambit, Make It Rain for others. Mega Garchomp (87%): EQ for Kingambit/Gholdengo. Rotom: Will-O-Wisp physical attackers and Pain Split to stay healthy. Watch Sucker Punch.
Reasoning trace (55 words)
Their Garchomp is at 6% and burn will finish it off at end of turn, so I just need something that survives this turn rather than risking a miss with Hydro Pump. Since Garchomp outspeeds and will likely Stone Edge, I'm weighing whether to just tank the hit and let burn do the work.
Claude Haiku 5.5 switched toKingambitIncident report
Only one legal action: played without asking.
- Turn 8Claude Haiku 5.5 used
KowtowcleaveKingambit (full HP, Supreme Overlord at 2 fainted allies) is now my only mon. Rotom-Wash (39%, Leftovers, Levitate) is a Dark-neutral target and its Hydro Pump can't KO Kingambit from full. Kowtow Cleave should KO it. Unseen: Dragapult, Gholdengo, Annihilape, and Kingambit. Mega Garchomp is fainted. Dragapult and Annihilape are weak to Dark, and Gholdengo's Ghost typing is a threat to watch for. Sucker Punch is the priority option if Rotom stays in and I need to move first.
Reasoning trace (80 words)
I'm checking Kingambit's Kowtow Cleave against Rotom-Wash at 39% HP, factoring in Black Glasses boost and Supreme Overlord's damage bonus from fainted allies to see if it secures the KO. Since Kingambit is slower, Rotom's Hydro Pump would hit first, but Kingambit should survive at full HP since Steel doesn't resist Water. I'm weighing Sucker Punch's priority advantage against Kowtow Cleave's higher raw power, but since switching risk is low, I'll go with Kowtow Cleave for the stronger hit.
Claude Opus 5.5 usedWillowispTheir last mon is Kingambit with Supreme Overlord (2 allies fainted, so +20% power). Burn it with Will-O-Wisp, then Mega Garchomp (faster) Earthquakes for the KO. Scarf Gholdengo's Focus Blast is the backup, but it is weak to Dark. Watch Sucker Punch: it fails against status moves.
Reasoning trace (208 words)
Kingambit is the opponent's last mon with Supreme Overlord boosting its attack from the two fainted allies. I'm weighing whether Will-O-Wisp could cripple its damage output by halving its attack, since it's still burnable despite being Steel/Dark, and checking how hard its Kowtow Cleave would hit my Rotom at 62 HP given the attack boost and Rotom's defense stat. Switching to Garchomp looks promising since Earthquake hits for super-effective damage and could near-OHKO Kingambit with its high attack and STAB, outspeeding it too. But Sucker Punch priority is a concern on the switch-in, since combined with a possible Kowtow Cleave hit beforehand it could add up to more damage than Garchomp's health pool, especially if Kingambit has already set up with Swords Dance. Gholdengo's Focus Blast is another option but unreliable due to accuracy and its own weakness to Dark-type moves, making Garchomp feel like the safer but still risky pick. I'm also considering leading with Will-O-Wisp on Rotom if it outspeeds, since Sucker Punch fails against status moves, which could let me burn Kingambit before it acts. Even if Rotom doesn't survive to attack again, landing the burn cripples Kingambit's offense and lets Garchomp switch in safely afterward. Will-O-Wisp seems like the better opening move here.
- Turn 9Claude Haiku 5.5 used
KowtowcleaveKingambit (195/207, burned) is my last Pokémon, with Supreme Overlord boosting its power from two fainted allies. Rotom-Wash is at 18% and slower than Kingambit. Kowtow Cleave doesn't check accuracy and should KO it, so I'm attacking now. Opponent's Mega Garchomp (87%, Sand Force, Earthquake 2x on Kingambit) is still in back and is the main threat next. Dragapult, Gholdengo, and Annihilape are unseen. Dark is strong against Dragapult and Annihilape, so Kingambit is my best check.
Reasoning trace (90 words)
Kingambit is mostly burned down while Rotom-Wash is low at 18%, and the opponent's Mega Garchomp sits healthy at 87% in the back. I'm checking Kowtow Cleave against Rotom-Wash, factoring in the neutral Dark-type matchup and the Supreme Overlord boost from fainted allies. Since Kowtow Cleave ignores accuracy and easily kills Rotom even if it heals with Leftovers or acts first with Hydro Pump, that's the safer choice over Sucker Punch, which risks failing against a status move like Will-O-Wisp. I'll go with Kowtow Cleave for the guaranteed kill.
Claude Opus 5.5 usedVoltswitchTheir last mon is Kingambit (burned, about 94%, Supreme Overlord, has Kowtow Cleave). Volt Switch into Mega Garchomp, which is faster, then Earthquake for the likely KO. Scarf Gholdengo's Focus Blast is the backup. Kingambit may carry Sucker Punch, but the burn halves its damage.
Reasoning trace (92 words)
With Kingambit burned at 94%, I'm weighing switching to Mega Garchomp and using Earthquake versus staying in against Sucker Punch or Kowtow Cleave. Kowtow Cleave already did 42 to Rotom, so against Garchomp's lower Defense it'd hit harder, but Garchomp outspeeds and Mega Garchomp's Earthquake with 222 Attack should hit significantly. Actually, Volt Switch looks like the better call -- either it chips Kingambit and brings Garchomp in safely, or if Kingambit's faster and Kowtow Cleave can't finish Rotom off before the switch, Garchomp still comes in free afterward either way.
Claude Opus 5.5 switched toGarchompTheir last mon is Kingambit (burned, 68%, Supreme Overlord, has Kowtow Cleave). Mega Garchomp is faster and should KO with Earthquake. If it survives, Earthquake again. Scarf Gholdengo's Focus Blast is the backup. Rotom is at 18% and is the last resort. Watch Sucker Punch, but the burn makes it weak.
Reasoning trace (74 words)
Garchomp's Earthquake against Kingambit at 68% HP looks like a clean KO given the calc, and Garchomp outspeeds, but Sucker Punch priority is a worry if Kingambit gets the first move off. Checking the log though, Rotom already used Volt Switch, so Kingambit hasn't acted yet this turn — meaning incoming Garchomp will eat Kingambit's attack first. Since Kingambit is burned, that hit should be manageable, so Garchomp is still the right switch-in.
- Turn 10Claude Haiku 5.5 used
SuckerpunchKingambit (129/207, burned, +20% Supreme Overlord) is my last Pokémon. Opponent's Mega Garchomp (56%, about 110 HP) is faster and its Earthquake probably KOs Kingambit before a normal move. Sucker Punch has priority and should hit first while Garchomp attacks. Kowtow Cleave would likely KO but would go second. Unseen: Dragapult, Gholdengo, Annihilape, Kingambit. Rotom-Wash (18%, Leftovers, Levitate) is also still in the back.
Reasoning trace (172 words)
I'm assessing the matchup: my burned Kingambit at 129/207 HP with Supreme Overlord boosted from two fainted allies against a Mega Garchomp sitting around 56% HP, weighing how Earthquake's double damage against Steel-type factors into the exchange. Kowtow Cleave looks like the strong option here since Dark hits Garchomp neutrally, and with Black Glasses and Supreme Overlord stacking alongside STAB, I'm estimating it could do roughly half or more of Garchomp's remaining health. The key wrinkle is priority: since Garchomp outspeeds, Sucker Punch would actually move first if Garchomp attacks, going before the speed order matters. But its raw power is lower than Kowtow Cleave, so I need to weigh whether speed advantage from priority outweighs the damage deficit. Sucker Punch only works if Garchomp attacks, so damage lands but likely isn't enough to KO given Garchomp's HP range. I'm also checking whether Iron Head would help, but Steel resists Dragon so that's not the issue here—Steel actually takes reduced damage from Dragon moves, which doesn't solve the speed/KO problem anyway.
Claude Opus 5.5 usedEarthquakeTheir last mon is Kingambit (burned, 62%). Mega Garchomp is faster and Earthquake should KO it. If it somehow survives, Earthquake again. Scarf Gholdengo's Focus Blast is the backup.
Reasoning trace (38 words)
Since Garchomp switched out on turn 3, the intimidate drop resets, so Mega Garchomp's Earthquake should be at full attack. Calculating the damage against Kingambit's bulk, it looks like Earthquake should score the KO at 62% HP.