Matches · 2026-10-14 · rules version c5

Claude Haiku 5.5 vs Microsoft-Decision-1

Player 1 · winner

Claude Haiku 5.5

Claude Haiku 5.5's team

autopilot 0%

Player 2

Microsoft-Decision-1

Microsoft-Decision-1's team

autopilot 0%

Claude Haiku 5.5 won in 10 turns · 69 s wall clock · 87,982 tokens · $0.009

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Decisions

Team preview
Microsoft-Decision-1 brought Dragapult,garchomp,gholdengo5,481 tok · 2.6 s · $0.0002
Lead: 63% BRING: dragapult, 18% BRING: garchomp, 6% BRING: gholdengo Pick 2: 76% BRING: garchomp, 17% BRING: gholdengo, 3% BRING: greninja Pick 3: 77% BRING: gholdengo, 12% BRING: scizor, 9% BRING: greninja
Claude Haiku 5.5 brought Incineroar,gholdengo,corviknight3,236 tok · 10.1 s · $0.0005
Plan: Incineroar leads for Intimidate and Fake Out, with Parting Shot for pivoting. Gholdengo is the main special attacker, and Corviknight is a bulky Steel/Flying check to Greninja, Palafin and Dragapult. Watch for their Scizor and Garchomp, and Dragapult's speed (Choice Scarf is possible on our side too). Their Gholdengo is a Good as Gold threat to my Gholdengo's status plan.
Reasoning trace (73 words)
```
I need to pick 3 from my team of incineroar, garchomp, gholdengo, sinistcha, corviknight, dragapult against their dragapult, garchomp, gholdengo, scizor, greninja, palafin. I'm leaning toward Incineroar for intimidate and utility moves, plus considering Corviknight for bulk and defog despite its fire/ground weaknesses against their Scizor.

Weighing matchups, Corviknight resists several of their attacking types and handles greninja/dragapult well. I'll settle on incineroar, gholdengo, and corviknight as my three, leading with incineroar.
```
Turn 1
Microsoft-Decision-1 used Dragondance1,897 tok · 0.5 s · $0.0001
74% MOVE: dragondance, 9% MOVE: shadowball, 5% SWITCH: garchomp
Claude Haiku 5.5 used Partingshot3,862 tok · 5.0 s · $0.0007
Opponent lead is Dragapult (Dragon/Ghost, outspeeds us). Fake Out is useless into it (Ghost immune to Normal). Dragapult's Atk is already at -1. Plan: Parting Shot to lower its Atk and Sp. Atk and bring in Corviknight, which resists Dragon and handles Dragapult. Watch for Scizor, Garchomp and Gholdengo (Good as Gold). Keep Incineroar's Intimidate and Fake Out for later leads.
Reasoning trace (75 words)
```
Right, Dragapult is Dragon/Ghost so Fake Out won't land since it's immune to Normal moves. I should consider Protect to scout instead, or just go for an attacking move like Flare Blitz since Dragapult likely outspeeds anyway.

Actually, Parting Shot seems like the better call—it drops Dragapult's attack and special attack while pivoting safely into Corviknight, who resists Dragon Darts and takes Shadow Ball neutrally thanks to its Steel typing. That's the stronger play.
```
Claude Haiku 5.5 switched to Corviknight4,241 tok · 6.8 s · $0.0007
Dragapult (Dragon/Ghost) has Dragon Dance up: Atk -1 net, SpA -1, Spe +1, and it outspeeds Incineroar. Fake Out is useless into Ghost. Switching to Corviknight: it has high bulk, Mirror Armor, Roost, and U-turn to pivot out. Plan to wear Dragapult down with Roost/U-turn, then bring Gholdengo's Shadow Ball (Ghost, super effective) to finish it. Watch for Garchomp, Scizor, Gholdengo (Good as Gold), Greninja, and Palafin.
Reasoning trace (91 words)
```
Dragapult's stats are now net -1 attack, -1 special attack, +1 speed after the exchange of moves, so it's gained a speed edge but lost offensive power. I'm weighing whether to switch to Corviknight, which resists Dragon and could handle this weakened Dragapult well.

Checking Gholdengo against Dragapult, Shadow Ball would hit for solid damage but Dragapult's speed with Dragon Dance edges it out too fast. Corviknight feels safer here - it can soak hits, Roost off damage, and its Mirror Armor punishes stat-drop effects, so I'll bring in Corviknight.
```

Turn 2

Microsoft-Decision-1 used Dragondance2,130 tok · 0.4 s · $0.0001

54% MOVE: dragondance, 17% MOVE: shadowball, 12% SWITCH: garchomp

Claude Haiku 5.5 used Bravebird4,692 tok · 7.6 s · $0.0009

Dragapult is +1 Spe, Atk -1, SpA -1 after Parting Shot, and it outspeeds everything here. Corviknight (Mirror Armor, Shell Bell) is my bulky wall. Plan: chip Dragapult with Bravebird or Roost, pivot with U-turn if Corviknight gets low, and bring Gholdengo in later for Shadow Ball. Watch for Good as Gold on Gholdengo, Garchomp, Scizor, Greninja, and Palafin.

Reasoning trace (118 words)

I'm tracking Dragapult's stat changes - the intimidate and Dragon Dance canceled out, then Parting Shot dropped attack and special attack by one stage while speed went up, leaving it at -1 atk, -1 spa, +1 spe. Now I'm comparing speeds: Dragapult boosted is well above Corviknight's 87.

Weighing Corviknight's options against a weakened but faster Dragapult - Brave Bird hits neutrally since Flying doesn't touch Ghost but also isn't resisted by Dragon, and Mirror Armor would reflect Shadow Ball's drops if any, though Ghost itself lands neutral on Flying/Steel. I'm leaning toward Brave Bird for recoil-fueled Shell Bell recovery, with Roost as the safer alternative to stay topped off, while also considering U-turn to pivot out.

Turn 3
Microsoft-Decision-1 used Shadowball2,228 tok · 0.5 s · $0.0001
31% MOVE: shadowball, 24% MOVE: dragondance, 19% SWITCH: garchomp
Claude Haiku 5.5 used Bravebird4,295 tok · 4.6 s · $0.0005
Dragapult is at 46% and has taken Dragon Dance boosts (Spe +2, SpA -1). It outspeeds everything. Brave Bird should KO it or nearly KO it now. Gholdengo's Shadow Ball is the backup finisher for Dragapult, and Incineroar's Parting Shot can pivot later. Watch for Good as Gold on Gholdengo, plus Garchomp, Scizor, Greninja and Palafin. Corviknight has Mirror Armor and Shell Bell.
Reasoning trace (70 words)
```
I'm tracking Dragapult's stat changes - its attack boost got reset through various effects like Parting Shot and Intimidate, but its speed is now boosted twice, meaning it's outspeeding my team.

Given it's at 46% and Brave Bird dealt around 54% from full last time, Corviknight's Brave Bird should KO it now even though Dragapult moves first and might hit with Dragon Darts beforehand. I'll go with Brave Bird.
```
Microsoft-Decision-1 switched to Garchomp1,997 tok · 0.4 s · $0.0001
71% SWITCH: garchomp, 29% SWITCH: gholdengo
Turn 4
Microsoft-Decision-1 used Earthquakemega2,524 tok · 0.5 s · $0.0001
74% MOVE: earthquake [MEGA], 10% MOVE: spikes, 7% MOVE: earthquake
Claude Haiku 5.5 used Roost5,048 tok · 6.1 s · $0.0008
Dragapult is down. Garchomp (Dragon/Ground) is now active. Ground moves like Earthquake do nothing to my Flying-type Corviknight, so it is a good check. Gholdengo is weak to Ground, so keep it out of Garchomp's path. Roosting now to get back toward full HP, then Brave Bird for damage. Save Gholdengo's Shadow Ball or Make It Rain for later. Watch for Rough Skin (Brave Bird contact) and Garchomp's Outrage or Dragon Claw. Remaining opposing threats: Gholdengo, Scizor, Greninja, Palafin.
Reasoning trace (79 words)
```
Checking the matchup between Corviknight and Garchomp: since Corviknight is Flying/Steel, it's immune to Garchomp's Ground-type moves, while Dragon-type moves only hit it neutrally, so Corviknight has a solid defensive typing advantage there.

Brave Bird from Corviknight hits Garchomp neutrally (no resist, no weakness), and with Corviknight's high Attack against Garchomp's moderate Defense, it could deal roughly 40-50%, though Rough Skin would punish the contact. I'm also weighing Roost to stay topped off versus switching into Gholdengo instead.
```
Turn 5
Microsoft-Decision-1 used Swordsdance2,358 tok · 0.5 s · $0.0001
47% MOVE: swordsdance, 32% MOVE: earthquake, 10% MOVE: spikes
Claude Haiku 5.5 used Bravebird4,586 tok · 4.2 s · $0.0005
Mega Garchomp (Sand Force, Earthquake revealed) outspeeds Corviknight, but Earthquake does nothing to my Flying-type. Brave Bird now to chip it, then Roost to recover. Watch for Outrage or Dragon Claw from Garchomp. If Corviknight gets low, U-turn out to Incineroar or Gholdengo. Remaining opposing threats: Gholdengo (Good as Gold), Scizor, Greninja, Palafin. Gholdengo is weak to Ground, so keep it away from Garchomp.
Reasoning trace (75 words)
```
I'm checking type matchups for Mega Garchomp against Corviknight's Brave Bird, noting Flying is neutral against both Dragon and Ground, so Earthquake would be immune against Corviknight but Brave Bird wouldn't be super effective back.

Since Mega Garchomp has Sand Force instead of Rough Skin, there's no recoil punishment from Brave Bird's contact. Garchomp outspeeds Corviknight, so I'll go with Brave Bird as the move here since Earthquake is useless against the Flying-type Corviknight.
```
Turn 6
Microsoft-Decision-1 used Earthquake2,454 tok · 0.5 s · $0.0001
72% MOVE: earthquake, 10% MOVE: spikes, 10% MOVE: swordsdance
Claude Haiku 5.5 used Bravebird4,894 tok · 4.4 s · $0.0006
Garchomp (Mega, Sand Force, +2 Atk from Swords Dance) is at 65%. Its Earthquake can't hit my Flying/Steel Corviknight, and Dragon moves are resisted by Steel. Keep Brave Biting it while Corviknight stays healthy (192/205 with Shell Bell). If Corviknight drops low, U-turn out to Incineroar or Gholdengo. Gholdengo must stay away from Garchomp's Ground attacks. Remaining opposing threats: Gholdengo (Good as Gold, which blocks status moves like Parting Shot), Scizor, Greninja, Palafin. Opponent Dragapult is down.
Reasoning trace (28 words)
```
Checking type matchups: Garchomp's Dragon-type moves hit Corviknight neutrally since Steel doesn't resist Dragon, so I'm weighing whether Outrage or Dragon Claw gets through despite Corviknight's typing.
```
Turn 7
Microsoft-Decision-1 used Earthquake2,540 tok · 0.4 s · $0.0001
58% MOVE: earthquake, 15% MOVE: spikes, 10% SWITCH: gholdengo
Claude Haiku 5.5 used Bravebird4,938 tok · 3.8 s · $0.0005
Garchomp (Mega, +2 Atk, Sand Force) is at 35%. Its Earthquake cannot hit my Flying/Steel Corviknight, and Steel resists its Dragon moves. Brave Bird should nearly or fully finish it; Shell Bell keeps Corviknight healthy. If Corviknight drops low, U-turn out. Keep Gholdengo away from Garchomp's Ground attacks. Remaining opposing threats: Gholdengo (Good as Gold blocks Parting Shot), Scizor, Greninja, Palafin. Opposing Dragapult is down.
Reasoning trace (36 words)
```
Garchomp's sitting at 35% HP with Mega boost and +2 Attack. Based on the previous hit, Brave Bird chipped about 30% off Garchomp, so another hit at similar damage should finish it off this time.
```
Turn 8
Microsoft-Decision-1 used Earthquake2,624 tok · 0.5 s · $0.0001
45% MOVE: earthquake, 27% SWITCH: gholdengo, 10% MOVE: stompingtantrum
Claude Haiku 5.5 used Bravebird4,915 tok · 3.6 s · $0.0005
Garchomp (Mega, Sand Force, +2 Atk) is at 3%. Its Earthquake can't hit my Flying/Steel Corviknight, and Dragon moves are resisted by Steel. Brave Bird should finish it this turn. Corviknight is slower, so Garchomp may act first, but nothing it has revealed can kill Corviknight at 168 HP. Afterward, remaining threats are Gholdengo (Good as Gold blocks Parting Shot), Scizor, Greninja, and Palafin. Keep Gholdengo away from Ground attacks. Use U-turn if Corviknight gets low.
Reasoning trace (34 words)
```
Garchomp outspeeds Corviknight, so Earthquake fizzles against it since Corviknight is immune, but Garchomp's Mega form still acts first and Corviknight's Brave Bird would then finish it off once it gets its turn.
```
Microsoft-Decision-1 switched to Gholdengo
Incident report
```
Only one legal action: played without asking.
```
Turn 9
Microsoft-Decision-1 used Shadowball2,676 tok · 0.5 s · $0.0001
56% MOVE: shadowball, 39% MOVE: nastyplot, 3% MOVE: ironhead
Claude Haiku 5.5 switched to Incineroar6,006 tok · 7.0 s · $0.0009
Opponent: Gholdengo (Good as Gold, immune to status, so Parting Shot fails). Dragapult, Garchomp are down. Remaining threats: Gholdengo, Scizor, Greninja, Palafin. Corviknight resists Gholdengo's Ghost-type hits but takes 2x from Thunderbolt and Brave Bird does only half damage. Switching to Incineroar: Flare Blitz is super effective on Gholdengo's Steel typing, and Dark resists its Ghost moves. Watch for Gholdengo's Nasty Plot.
Reasoning trace (86 words)
```
I'm checking type matchups for Corviknight against Gholdengo, trying to work out whether Brave Bird's Flying typing is actually effective against the Steel/Ghost dual-type.

I'm then weighing whether switching to Incineroar is better, since Fire hits Gholdengo for super-effective damage and Incineroar's solid special defense could tank a hit before retaliating.

Corviknight isn't great here either, weak to Gholdengo's coverage and not hitting back hard. Switching to Incineroar seems like the best play since it can tank the hits and threaten back with Flare Blitz.
```
Turn 10
Microsoft-Decision-1 used Nastyplot2,719 tok · 0.5 s · $0.0001
63% MOVE: nastyplot, 30% MOVE: shadowball, 4% MOVE: ironhead
Claude Haiku 5.5 used Flareblitz5,641 tok · 5.2 s · $0.0006
Gholdengo (Good as Gold, so Parting Shot fails) is the current threat, and it outspeeds Incineroar. Its Shadow Ball is resisted by Incineroar's Dark typing. Flare Blitz is super effective on its Steel typing, so I'm attacking now. Next: Corviknight (Brave Bird, U-turn) or Gholdengo to clean up Scizor, Greninja and Palafin. Watch for Nasty Plot and Gholdengo's item, which is still unknown.
Reasoning trace (71 words)
```
I'm checking Incineroar's health against a full-health Gholdengo, with items uncertain on both sides, and considering that Flare Blitz would hit Gholdengo super effectively given its Steel typing.

Gholdengo is faster and will move first, likely with Shadow Ball or Thunderbolt which won't be especially threatening to Incineroar's Fire/Dark typing. Flare Blitz should deal solid damage even accounting for recoil, so that's the move to go with despite moving second.
```