How to play Koby OP11-001
Red / Black Leader · deck guide from 1,200 simulated games against the 12 most-played decks · updated November 2, 2026
Played with its most common tournament list, Koby won 63.9% of games against the current meta. Games ran about 5.6 of its own turns.
Your {SWORD} type Characters can attack Characters on the turn in which they are played.
[Once Per Turn] If your {Navy} type Character with 7000 base power or less would be removed from the field by your opponent's effect, you may place 3 cards from your trash at the bottom of your deck in any order instead.
Go first or second?
Go second. Wins 70% going second vs 58% going first.
Mulligan: what to keep
Hands with 3 or more early Characters (cost 1–4) won most often (65.1%). The cards that matter most in an opening hand are Helmeppo EB04-047 (+8.0 points), Kujyaku EB03-041 (+7.1 points), Kujyaku OP11-004 (+4.3 points), Koby PRB02-001 (+3.7 points): hands with them win that much more often than hands without. Hands with Ground Death, Doll, Smoker & Tashigi win less often (−16.1, −6.3, −4.4 points).
| Early Characters in opening hand | Games | Win rate |
|---|---|---|
| 2 | 192 | 57.8% |
| 3 or more | 1008 | 65.1% |
Turn by turn
What the deck plays most often on each of its turns:
- Turn 1:
Kujyaku OP11-004 (35% of games) or 
I'm Gonna Be a Navy Officer!!! (31% of games) - Turn 2:
Hibari (32% of games) or 
Kujyaku EB03-041 (20% of games) - Turn 3:
Helmeppo OP11-092 (26% of games) or Kujyaku EB03-041 (23% of games) - Turn 4: Helmeppo OP11-092 (45% of games) or
Koby EB04-044 (23% of games) - Turn 5: Koby EB04-044 (31% of games) or Helmeppo OP11-092 (25% of games)
- Turn 6: Koby EB04-044 (27% of games) or Helmeppo OP11-092 (26% of games)
Key cards
| Card | Played in | Usual turn |
|---|---|---|
| Helmeppo OP11-092 | 79% | 3.9 |
| I'm Gonna Be a Navy Officer!!! | 67% | 2.5 |
| Koby EB04-044 | 65% | 4.4 |
| Kujyaku OP11-004 | 60% | 2.0 |
| Hibari | 55% | 2.8 |
| Kujyaku EB03-041 | 54% | 3.0 |
 Aramaki | 52% | 1.8 |
 Ripper | 42% | 2.3 |
Matchups
Best: Yamato (97.0%), Donquixote Rosinante (85.0%), Kaido (84.0%). Hardest: Rocks.D.Xebec (23.0%), Luffy & Ace (42.0%), Monkey.D.Luffy OP17-079 (48.0%).
| Against | Win rate | Games |
|---|---|---|
| Yamato OP16-079 | 97.0% | 100 |
| Donquixote Rosinante OP12-061 | 85.0% | 100 |
| Kaido OP17-058 | 84.0% | 100 |
| Monkey.D.Luffy OP13-001 | 82.0% | 100 |
| Enel OP15-058 | 76.0% | 100 |
| Enel OP05-098 | 68.0% | 100 |
| Sabo OP13-004 | 60.0% | 100 |
| Boa Hancock OP14-041 | 52.0% | 100 |
| Portgas.D.Ace OP16-001 | 50.0% | 100 |
| Monkey.D.Luffy OP17-079 | 48.0% | 100 |
| Luffy & Ace ST30-001 | 42.0% | 100 |
| Rocks.D.Xebec OP17-039 | 23.0% | 100 |
How these numbers are made: the site's game engine plays full games (DON!!, attacks, blockers, counters, triggers and card effects) between tournament decklists, with the same AI on both sides. They show how the deck plays on average, not how a top player would pilot it. Differences under about 3 points are within noise.