Right now: the best rip in Legacy of the Master (OP12) is the Booster Pack at $9.34 against $4.99 of expected pulls — a −55% margin after ~15% selling fees. Figures refresh every two hours.
Legacy of the Master (OP12) released August 22, 2025, and by One Piece standards it's been one of the friendlier rips of the modern era — still negative, but with a smaller gap between pack price and expected return than most of its neighbors. Structure is standard: 12 cards, a rare slot at about 20% Super Rare, and a hit slot at roughly 55% SR, 25% Leader, 1-in-20 Secret Rare and 1-in-100 Treasure Rare by community estimates.
The value driver is the usual pair — the SEC pool and the TR — but healthier singles prices across the mid-rarities have kept OP12's floor from collapsing the way it does in weaker sets. Whether that makes ripping defensible depends on the live gap below, which updates every two hours. As entertainment per dollar it's among the better One Piece choices; as an investment, the house edge still points the usual direction.
Sealed products: price vs. expected value
| Product | Margin after ~15% fees | Market price | EV of pulls |
|---|---|---|---|
| Booster Pack | −55% | $9.34 | $4.99 |
| Booster Box (24 packs) | −63% | $273.55 | $119.71 |
| Sleeved Booster Pack | −75% | $16.74 | $4.99 |
Pull-rate model
Legacy of the Master (OP12) packs hold 12 cards; the slots below are the ones that carry value.
| Slot | Outcome | Est. chance |
|---|---|---|
| Rare slot | Rare (R) | 80% |
| Rare slot | Super Rare (SR) | 20% |
| Hit slot | Rare (R) baseline | 14% |
| Hit slot | Super Rare (SR) | 55% |
| Hit slot | Leader (L) | 25% |
| Hit slot | Secret Rare (SEC) | 5% |
| Hit slot | Treasure Rare (TR) | 1% |
Community-estimated rates — no publisher discloses official pull odds. The calculator prices each outcome from live singles data.
FAQ
What is the chase in Legacy of the Master (OP12)?
Secret Rares (about 1 in 20 packs by community estimate) and the Treasure Rare (about 1 in 100).
What OP12 products can I compare on this page?
Loose booster packs, 24-pack booster boxes, and sleeved booster packs, each with live EV and margin.
Are the OP12 pull rates official?
No — Bandai publishes none. These are community estimates and can shift with new box data.
🎴 Rip a Legacy of the Master (OP12) pack yourself — simulated, real odds, live prices →