Matches · 2026-10-10 · rules version c4
Claude Haiku 5.5 vs Gemini 3.8 Flash
Gemini 3.8 Flash won in 14 turns · 2 min wall clock · 88,416 tokens · $0.045
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Decisions
- Team previewGemini 3.8 Flash brought
Garchomp,gholdengo,primarinaGarchomp threatens almost their entire team with Earthquake, especially their Steel-types and Incineroar. Choice Scarf Gholdengo offers tremendous offensive pressure and speed control, while Primarina provides a sturdy defensive switch-in against opponent Garchomp and Incineroar.
Claude Haiku 5.5 broughtIncineroar,garchomp,kingambitIncineroar leads for Intimidate against the physical Garchomp and Dragonite, plus Fake Out for Mimikyu. Garchomp adds fast Mega pressure and Kingambit gives a strong Dark attacker that hits Mimikyu and Gholdengo hard.
Reasoning trace (77 words)
I need to pick three from our team against their Dragonite, Gholdengo, Mimikyu, Garchomp, Volcarona, and Primarina. Incineroar stands out as a strong bring since its intimidate weakens their physical threats like Dragonite and Garchomp, plus it offers fake out and parting shot utility. Kingambit's Dark typing also hits Mimikyu for super effective damage, though I'm weighing its weaknesses to Fire, Fighting, and Ground against Volcarona. I'll settle on Incineroar, Garchomp, and Kingambit as my trio.
- Turn 1Gemini 3.8 Flash used
EarthquakemegaMega Garchomp outspeeds Incineroar and deals massive super-effective STAB damage with Earthquake even after Intimidate. Mega Evolving boosts Attack significantly, making Earthquake the most reliable play to either KO Incineroar or severely dent a switch-in.
Claude Haiku 5.5 usedFakeoutOpposing Garchomp outspeeds Incineroar, so it would hit first. Fake Out has priority and flinches, which stops its first attack, and Garchomp is already at -1 Attack from Intimidate. Fake Out is the best turn-one play.
Reasoning trace (39 words)
Incineroar's Fake Out seems like the strongest turn 1 option here—Garchomp is already weakened at -1 Attack, and Fake Out would flinch it despite its higher speed, accounting for Rough Skin's minor contact damage as an acceptable tradeoff.
- Turn 2Claude Haiku 5.5 used
PartingshotMega Garchomp outspeeds Incineroar, and Flare Blitz is resisted by Dragon-types, so attacking is poor. Parting Shot cuts Garchomp's Attack by another stage and lets me pivot out. Kingambit can then come in against a weakened Garchomp.
Reasoning trace (110 words)
Mega Garchomp at 86% HP with its attack lowered from Intimidate is faster than my Incineroar and loses Sand Force without sandstorm up, so it'll likely go for Outrage or Earthquake. Fire Blitz won't be great here since fire is only neutral against ground and resisted by dragon. I'm weighing Protect versus Parting Shot — Parting Shot would drop Garchomp's attack further and let me pivot into Kingambit, who takes double damage from Earthquake being Steel-type but otherwise trades neutrally with Dark and Steel moves against Garchomp's Dragon/Ground typing. Bringing in Kingambit against an Atk-2 Garchomp seems like a solid play, especially with Supreme Overlord boosting its damage output.
Gemini 3.8 Flash usedEarthquakeMega Garchomp outspeeds Incineroar. Super-effective STAB Earthquake applies immediate massive pressure or knocks Incineroar out.
Claude Haiku 5.5 switched toGarchompIncineroar is down to 94 HP and is weak to the opposing Garchomp's Earthquake, so it has to come out. Our Garchomp is faster than theirs, and their -2 Attack cuts the damage their Earthquake does. Garchomp is the better switch-in over Kingambit, which takes super-effective Ground damage.
Reasoning trace (118 words)
Incineroar is at 94/202 HP, and Mega Garchomp has debuffed attack and special attack stats. Since Garchomp is Fire/Dark, Earthquake's Ground typing hits for double damage, so I need to account for that significant threat when picking the legal action. Since Incineroar must switch, I'm comparing Kingambit and my own Garchomp. Kingambit is Steel/Dark, which takes double damage from Earthquake, but Mega Garchomp's attack drop softens that hit. My Garchomp mirrors their speed tier at 169, and with Garchomp's own attack debuffed, I could potentially out-damage or out-speed in this matchup using Earthquake or Outrage. Our Garchomp outspeeds their weakened Garchomp and isn't vulnerable to their Earthquake, so switching in our Garchomp looks safe and solid here.
- Turn 3Gemini 3.8 Flash switched to
PrimarinaMega Garchomp is at -2 Attack and slower than standard base Garchomp, making it vulnerable to an immediate Dragon STAB. Primarina is immune to Dragon-type attacks and safely switches in.
Claude Haiku 5.5 usedOutragemegaMy Garchomp is faster (169 vs at most 158), so I move first. Outrage is super effective on their Dragon/Ground Garchomp, and Mega Evolution raises my Attack enough to very likely knock it out this turn.
Reasoning trace (168 words)
Our Garchomp outspeeds at 169, while the opponent's Mega Garchomp has its attack and special attack dropped by stat reductions, weakening its Earthquake. They're sitting around 86% HP, roughly 160-185 HP remaining, and I'm checking our own Mega Garchomp's boosted stats with Sand Stream active. Outrage looks like the strongest option here - as a Dragon-type move it hits the opposing Garchomp (Dragon/Ground) for super effective damage, while Earthquake would only be neutral against it. The 120 base power plus STAB and the type advantage makes Outrage hit much harder than Earthquake would, even accounting for the lock-in and confusion risk afterward. With mega's boosted attack around 240, the damage calculation jumps to roughly 260 after STAB and super-effective multipliers, easily enough for a clean KO. Mega evolving also grants Sand Stream permanently, and since the opposing Garchomp is already weakened at -2 attack, Outrage while mega evolved is clearly the strongest play despite the two-turn lock and post-confusion risk, since the knockout ends the exchange anyway.
- Turn 4Gemini 3.8 Flash used
MoonblastOpposing Mega Garchomp is locked into Outrage, which Primarina is completely immune to. Moonblast deals massive super-effective STAB damage for an easy knockout.
Claude Haiku 5.5 usedEarthquakeOutrage does nothing to Primarina, since Water/Fairy is immune to Dragon. Mega Garchomp is faster (158 vs 72-123), so it moves first. Earthquake is neutral, has STAB, and has 100% accuracy, which beats Stone Edge's 80% accuracy here.
Reasoning trace (38 words)
Since Primarina resists Dragon entirely and takes neutral damage from both Ground and Rock, I'm weighing Garchomp's Earthquake against Stone Edge — Earthquake's perfect accuracy makes it the safer STAB choice over the riskier high-crit Stone Edge.
- Turn 5Gemini 3.8 Flash used
AquajetMega Garchomp is at 5% HP and faster than Primarina, meaning it would KO with Earthquake. Aqua Jet provides priority to secure the knockout before it can move.
Claude Haiku 5.5 usedEarthquakeOur Mega Garchomp is faster (158 vs at most 123), so it moves first. Primarina is at 41%, roughly 64-77 HP. Earthquake is 100% accurate and should knock it out before it can use Moonblast. Stone Edge's 80% accuracy isn't worth the risk.
Reasoning trace (42 words)
I'm checking the matchup: our Mega Garchomp is low on HP but faster, and Primarina is at around 41% health. I need to work out whether Earthquake actually hits Primarina effectively given its Water/Fairy typing, since Ground moves don't touch Fairy-types.
Claude Haiku 5.5 switched toKingambitGarchomp has fainted, so I must switch. Kingambit is at full HP and has no bad matchup against Primarina: Water and Moonblast are roughly neutral on Dark/Steel. Primarina is at 47%, so Kingambit's Sucker Punch or Kowtow Cleave should threaten a knockout.
Reasoning trace (33 words)
With Garchomp down, I need to switch to either Incineroar or Kingambit against their Primarina. Kingambit's Dark/Steel typing should resist the Fairy-type STAB fairly well, so that seems like the safer pick.
- Turn 6Gemini 3.8 Flash switched to
GarchompClaude Haiku 5.5 usedIronheadPrimarina is Water/Fairy at about 47% HP, roughly 80 HP left. Iron Head is Steel STAB with 2x damage on Fairy, so it should knock Primarina out. Kingambit can also take an Aqua Jet at full HP, so there's no need to switch or set up.
Reasoning trace (101 words)
Primarina is Mega Evolved, Water/Fairy, sitting at 47% HP against a full-health Kingambit. Kowtow Cleave is Dark-type, and Dark against Fairy isn't super effective, so I'm checking the actual resistance there. Iron Head is Steel-type and hits Primarina for 2x super effective damage with STAB, making it the clearly stronger option over Kowtow Cleave even with the BlackGlass boost. Running rough damage math, Iron Head at 203 relative damage far exceeds Primarina's ~80 remaining HP, so it should knock her out—now I just need to check the speed matchup since Kingambit's 102 could fall anywhere relative to Primarina's speed range.
- Turn 7Gemini 3.8 Flash used
EarthquakeEarthquake easily picks up the knockout on Kingambit with STAB super-effective damage from Mega Garchomp's massive Attack stat.
Claude Haiku 5.5 usedSuckerpunchGarchomp-Mega is at 20% and may outspeed Kingambit (100-158 vs 102). Sucker Punch has +1 priority, so it moves first, and it should KO if Garchomp is using its attacking Earthquake.
Reasoning trace (42 words)
Garchomp's at just 20% HP, and the speed matchup between it and Kingambit matters here - Sucker Punch only works if Garchomp is attacking that turn, so if it goes for Earthquake, Kingambit's priority move would connect for likely a KO.
Gemini 3.8 Flash switched toPrimarina - Turn 8Gemini 3.8 Flash used
MoonblastPrimarina cannot survive another Iron Head, but Kingambit threatens Gholdengo heavily with Sucker Punch/Kowtow Cleave, so preserving Primarina via switching isn't safe. Moonblast deals solid neutral special damage to Kingambit's lower Special Defense to soften it up for Choice Scarf Gholdengo to clean up.
Reasoning trace (50 words)
**Analyzing the Primarina Encounter** I've determined Primarina's current health and potential outcomes against Kingambit. It's clear that Iron Head will be a knockout. I've calculated that Moonblast delivers neutral damage to Kingambit, leveraging its weaker special defense. I am now exploring the utility of Hyper Voice, given Liquid Voice.
Claude Haiku 5.5 usedIronheadPrimarina is at 47% (about 80 HP) and is Water/Fairy, so Steel is super effective against it. Iron Head has 100% accuracy and should KO even after Kingambit's Supreme Overlord boost. Kingambit's Dark moves are resisted by Fairy, so they are the wrong choice here.
Reasoning trace (127 words)
I'm checking Kingambit's boosted attack stat with Supreme Overlord active, and estimating Primarina's remaining HP at roughly 80. Now I'm working out type effectiveness between Kingambit's Dark-type moves and Primarina's Water/Fairy typing, noting Fairy generally resists Dark damage. Iron Head is Steel-type though, which hits Fairy super effectively, so I'm running the damage calculation: base power 80, STAB, Supreme Overlord boost, and the 2x type multiplier should combine to roughly 198 damage against Primarina's estimated 80 HP, meaning a likely KO. I'm also weighing speed - Kingambit at 102 speed versus Primarina's range, and considering the threat of a priority Aqua Jet or a Moonblast if Primarina moves first. Iron Head looks like the clear best choice given the guaranteed super effective hit and probable KO.
Gemini 3.8 Flash switched toGholdengoPrimarina has fainted, leaving Gholdengo as the only available Pokémon to send out.
- Turn 9Gemini 3.8 Flash used
FocusblastKingambit is 4x weak to Fighting, making Focus Blast our only viable path to an immediate knockout. Gholdengo is our last Pokémon, so we must go for the kill.
Claude Haiku 5.5 usedKowtowcleaveKowtow Cleave is Dark STAB, super effective on Steel/Ghost Gholdengo, and boosted by Black Glasses and Supreme Overlord. That should be a likely knockout, and it never misses. Sucker Punch has priority but less power, so the stronger move is the better pick.
Reasoning trace (103 words)
I'm checking Kingambit's Kowtow Cleave against Gholdengo—Dark type gets a boost against Ghost, and with Supreme Overlord plus Black Glasses the damage multiplier stacks up, though Gholdengo's Steel typing resists Dark somewhat while being weak to it via Ghost. Comparing to Sucker Punch, which has lower base power but priority, so if Gholdengo is faster and committed to attacking, Sucker Punch could still land first and deal solid damage, while Kowtow Cleave hits harder but only if Kingambit moves first or survives. I'm roughly estimating Kowtow Cleave's damage output against Gholdengo's likely defensive stats to see which move is the better pick.
Claude Haiku 5.5 switched toIncineroarKingambit has fainted, so the only legal action is to switch in Incineroar. I'll choose the switch.
- Turn 10Gemini 3.8 Flash used
FocusblastGholdengo is locked into Focus Blast by Choice Scarf. A super effective Focus Blast easily knocks out Incineroar at 46% HP.
Claude Haiku 5.5 usedProtectGholdengo is faster, and its Focus Blast is super effective on my Fire/Dark Incineroar, which has only 94 HP left. If I attack, Incineroar may be knocked out before Flare Blitz lands. Protect blocks the incoming hit this turn and keeps Flare Blitz available next turn.
Reasoning trace (191 words)
Incineroar's at 46.5% HP facing Gholdengo, which is Steel/Ghost and faster — Fake Out won't work since Ghost is immune to Normal moves, but Flare Blitz hits hard since it's super effective against Steel. I'm checking if Gholdengo's Focus Blast could knock out Incineroar given its current HP. Working through damage math: Fighting-type Focus Blast is super effective against Dark, so it hits Incineroar for double damage and likely secures the KO despite its 70% accuracy. I'm also calculating whether Incineroar's Flare Blitz could OHKO Gholdengo first, factoring in its attack stat and Gholdengo's defensive bulk. Since Gholdengo outspeeds Incineroar, if it goes for Focus Blast and misses, Incineroar's retaliating Flare Blitz would deal heavy damage but recoil also hurts. A safer line might be using Protect this turn to dodge the Focus Blast risk entirely, then committing to Flare Blitz next turn once the coast is clear. Also Gholdengo moves first and could Focus Blast Incineroar before it ever gets to attack, with 70% hit chance making Flare Blitz unreliable to even execute. So Protect is clearly the safer pick—it guarantees survival this turn and buys time to reassess.
- Turn 11Gemini 3.8 Flash used
FocusblastGholdengo is locked into Focus Blast by Choice Scarf. A super effective Focus Blast will comfortably KO Incineroar from 46% HP to win the battle.
Claude Haiku 5.5 usedProtectGholdengo is faster (93+ vs 80), and Focus Blast is super effective on Incineroar's Dark half, so it would KO Incineroar before any move resolves. Flare Blitz and Parting Shot would both fail. Protect is the only option that keeps Incineroar alive this turn.
Reasoning trace (122 words)
I'm checking Incineroar's HP against Gholdengo's Focus Blast damage, and working out the type matchup—Fighting is super effective against Dark, so this hit could do significant damage despite Incineroar's decent special bulk. Switching to the other side, I'm calculating Flare Blitz damage from Incineroar back onto Gholdengo, factoring in Incineroar's full Attack stat since the intimidate drop applies to Gholdengo rather than itself, and Fire's double effectiveness against Steel. Since Gholdengo outspeeds, though, Focus Blast should KO Incineroar's 94 HP before it can even act, making Flare Blitz moot unless Incineroar Protects. If Incineroar protects now, I'm weighing whether consecutive Protects risk failing, but since this would only be the second use it should still work reliably as a stalling option.
- Turn 12Gemini 3.8 Flash used
FocusblastGholdengo is Choice Scarf locked into Focus Blast and outspeeds Incineroar. Focus Blast easily knocks out Incineroar from 46% HP to win the game.
Claude Haiku 5.5 usedProtectGholdengo is faster than Incineroar (80 vs 93+), so it always moves first. Its Focus Blast is super effective and can KO Incineroar at 94 HP, and Flare Blitz would never get to act. Protect should succeed because the last Protect failed, which resets the consecutive-use penalty. That blocks the Focus Blast this turn and keeps Partingshot available for the next turn.
Reasoning trace (154 words)
Checking Focus Blast's effectiveness against Incineroar, since it's super effective against the Dark typing, I'm calculating that Gholdengo's Special Attack against Incineroar's Special Defense should be enough to knock it out at 94 HP remaining. I'm also considering Flare Blitz on Gholdengo, but since Gholdengo outspeeds, its Focus Blast lands first regardless. As for Protect, Incineroar just had it fail last turn, and since the failure resets the consecutive-use counter in Gen 9, there's a good chance it succeeds this time. Still, blocking just delays the inevitable since I'm not dealing damage back. Parting Ship could also work by swapping out while dropping Gholdengo's attacking stats, giving Incineroar's replacement a cleaner matchup. Protect guarantees blocking this hit with the reset counter, costing Gholdengo PP while buying time, but gains nothing concrete beyond that. Weighing it against Partingshot's free switch and debuff, Protect feels like the safer, lower-risk choice given Focus Blast's repeated use.
- Turn 13Gemini 3.8 Flash used
FocusblastGholdengo is locked into Focus Blast via Choice Scarf. Incineroar just used Protect successfully, so Protect has a high failure rate this turn and Focus Blast easily finishes it off.
Claude Haiku 5.5 usedProtectGholdengo is faster than Incineroar and its Focus Blast is super effective on my Fire/Dark, so Flare Blitz would not KO it first and I would likely lose Incineroar. Parting Shot fails because Gholdengo's Good as Gold blocks status moves. Protect is the safe play this turn.
Reasoning trace (108 words)
Incineroar is at 94/202 HP, and I'm checking Focus Blast's effectiveness against it. Incineroar is Fire/Dark, and Dark is indeed weak to Fighting, so Focus Blast should land as a super effective hit. Gholdengo's Steel typing means status moves like Parting Shot fail against it, but Protect itself is a self-targeting move so it should still work; the risk is consecutive Protect use has a fail chance, which already happened once. If I use Flare Blitz instead, Gholdengo likely moves first with Focus Blast and could KO before I get to act, so Protect still seems like the safer play to stall through the Focus Blast threat.
- Turn 14Gemini 3.8 Flash used
FocusblastGholdengo is Choice-locked into Focus Blast. Incineroar has used Protect multiple times in a row, making another successful Protect virtually impossible, and Focus Blast will knock it out to win the match.
Claude Haiku 5.5 usedFlareblitzParting Shot is blocked by Gholdengo's Good as Gold, and Protect has already been used three turns running, so its success chance is poor. Gholdengo outspeeds Incineroar, but Flare Blitz is super effective into its Steel typing and is the only move that deals real damage. Incineroar's best chance is to hit hard before it is KO'd.
Reasoning trace (134 words)
Gholdengo's Good as Gold ability blocks Parting Shot since it's a status move, so that option won't work here. I'm also noting Protect has been used three times in a row, which risks failure, but Flare Blitz looks promising since Fire is super effective against Gholdengo's Steel typing. Speed-wise, Gholdengo outpaces Incineroar, so Focus Blast (Fighting, 2x vs Dark) would hit first and likely KO given Incineroar's 94 HP, though its 70% accuracy is a risk. Flare Blitz back could deal heavy damage but probably not a guaranteed KO on a mega Gholdengo, while a fourth consecutive Protect now carries a much lower success chance (down to roughly 1/3). Parting Shot gets blocked by Good as Gold, so Flare Blitz is really the only viable offensive choice here. I'll go with Flare Blitz.