Matches · 2026-10-15 · rules version c5

Claude Sonnet 5.5 vs Mercury Decide

Player 1

Claude Sonnet 5.5

Claude Sonnet 5.5's team

autopilot 0%

Player 2 · winner

Mercury Decide

Mercury Decide's team

autopilot 0%

Mercury Decide won in 4 turns · 49 s wall clock · 39,651 tokens · $0.069

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Decisions

Team preview
Mercury Decide brought Dragapult,garchomp,metagross5,570 tok · 2.6 s · $0.0001
Lead: 42% BRING: dragapult, 23% BRING: metagross, 14% BRING: rotomwash Pick 2: 36% BRING: garchomp, 32% BRING: metagross, 15% BRING: scizor Pick 3: 55% BRING: metagross, 20% BRING: rotomwash, 16% BRING: scizor
Claude Sonnet 5.5 brought Gholdengo,kingambit,garchomp2,805 tok · 6.2 s · $0.0058
Plan: lead Gholdengo (Good as Gold blocks Toxapex status and Rotom moves). Kingambit and Garchomp in the back. Opponent has Garchomp, Dragapult, Scizor, Metagross, Rotom-Wash and Toxapex. Watch for Scizor's Bullet Punch and Dragapult's speed.
Turn 1
Mercury Decide used Shadowball1,946 tok · 0.6 s · $0.0000
74% MOVE: shadowball, 21% MOVE: phantomforce, 3% SWITCH: metagross
Claude Sonnet 5.5 used Shadowball3,052 tok · 1.8 s · $0.0066
Lead Gholdengo vs Dragapult. Shadow Ball is super effective on Dragapult, but Dragapult may be faster and has Dragon Darts, Phantom Force and Shadow Ball. Good as Gold blocks its status moves. Garchomp and Kingambit stay in the back.
Claude Sonnet 5.5 switched to Kingambit3,284 tok · 3.6 s · $0.0069
Gholdengo fainted on turn 1 to a Life Orb Shadow Ball from Dragapult (now 90%, faster than my team). Switching in Kingambit: it resists Shadow Ball and Dragon moves, and Sucker Punch is super effective on Dragapult. Garchomp (garchompite) stays as the back-up. Watch for Scizor, Metagross and Toxapex.
Reasoning trace (26 words)
```
With Gholdengo down, I need to switch since Dragapult is faster than Garchomp and could threaten with Shadow Ball, though Kingambit's Dark typing resists that.
```
Turn 2
Mercury Decide used Uturn2,205 tok · 0.6 s · $0.0000
52% MOVE: uturn, 28% SWITCH: metagross, 17% SWITCH: garchomp
Claude Sonnet 5.5 used Suckerpunch3,710 tok · 4.8 s · $0.0081
Turn 2: Kingambit (Life Orb, 1.1x Supreme Overlord) uses Sucker Punch on Dragapult, which is at 90% and should die to it. Garchomp (garchompite) stays as the back-up. Their remaining Pokémon may include Scizor, Metagross, Rotom-Wash, Toxapex and Garchomp. Dragapult has Life Orb and outspeeds my whole team.
Reasoning trace (30 words)
```
I'm calculating whether Sucker Punch from Kingambit can knock out Dragapult, factoring in the boosted attack from Supreme Overlord, Life Orb, STAB, and the Dark-type super effectiveness against Ghost.
```
Mercury Decide switched to Garchomp1,852 tok · 2.2 s · $0.0000
71% SWITCH: garchomp, 29% SWITCH: metagross

Turn 3

Mercury Decide used Earthquakemega2,416 tok · 1.2 s · $0.0000

94% MOVE: earthquake [MEGA], 5% MOVE: earthquake, 0% MOVE: swordsdance [MEGA]

Claude Sonnet 5.5 used Kowtowcleave5,025 tok · 13.8 s · $0.0190

Kingambit (Life Orb) vs their Garchomp, which probably outspeeds me and threatens Earthquake. Kowtow Cleave takes about 50% and never misses. My Garchomp (garchompite) is the back-up, so keep Mega Garchomp for the cleanup. Their last Pokémon is one of Scizor, Metagross, Rotom-Wash or Toxapex. Their Dragapult had Life Orb and was fast.

Reasoning trace (197 words)

My Kingambit is at 187/207 HP facing a full-health Garchomp, and with only Gholdengo fainted on my side, Supreme Overlord gets a modest 1.1x boost. I need to think through what Garchomp likely carries—Earthquake, Dragon Claw, Rock Slide—and weigh how that interacts with Kingambit's Dark/Steel typing.

Earthquake is a problem since it's super effective on Steel, so I'm running the numbers: Kowtow Cleave with Life Orb and Supreme Overlord lands around 98 damage, roughly 53% of Garchomp's health, not a knockout. Meanwhile Garchomp's Earthquake could deal 148-174 damage back to Kingambit's 187, likely leaving it in critical range or fainted outright, and I'm unsure who outspeeds whom given possible Mega Evolution speed changes. I'm weighing whether Sucker Punch is the safer play here instead.

Comparing Sucker Punch versus Kowtow Clash as openers: Sucker Punch gets priority damage in first but exposes me to their EQ after, while leading with Kowtow risks eating their EQ before I can strike back, though I might survive a weak roll and still land my hit. Rough Skin also chips me on contact, so I'm weighing whether to trade blows now or bring in Mega Garchomp against a weakened target afterward.

Claude Sonnet 5.5 switched to Garchomp

Incident report

Only one legal action: played without asking.

Turn 4

Mercury Decide used Dragonclaw2,259 tok · 0.7 s · $0.0000

81% MOVE: dragonclaw, 7% MOVE: swordsdance, 7% SWITCH: metagross

Claude Sonnet 5.5 used Dragonclaw5,527 tok · 16.5 s · $0.0218

Their Mega Garchomp (Sand Force) has only shown Earthquake. My Garchomp is unmegaed and outspeeds it, so use Dragon Claw (super effective, about 60%). If it survives, follow up with another Dragon Claw. Their last Pokémon is one of Scizor, Metagross, Rotom-Wash or Toxapex. Mega Evolve only if it helps, since Mega lowers my speed.

Reasoning trace (155 words)

I'm comparing speed stats between my Garchomp and the opposing Mega Garchomp, factoring in Sand Stream's sandstorm effect from Sand Force and trying to figure out who outspeeds whom.

Staying unmega'd keeps me faster, so I'm calculating Dragon Claw's damage with STAB and the dragon/ground type matchup - it lands for roughly 60% of their HP but falls short of a knockout, meaning I'd need to plan for a follow-up hit.

Working out the trade sequence: if I lead with Dragon Claw unmega'd for roughly 60%, their Earthquake back at me only does about 64% given my defense stat, so I survive and finish them with a second Claw. That seems like the winning line as long as they don't do something unexpected first.

Staying unmega keeps me guaranteed faster, so if their Dragon Claw wouldn't KO me either way, I might as well save the mega for next turn and just attack now.