A loose Carrying On His Will pack costs about $11.42 in our July 2026 price snapshot and returns roughly $2.71 in expected value — an -80% margin after ~15% selling fees. The booster box is worse: $408 for 24 packs and about $65 of expected cards, or -86% after fees. OP13 has one of the most spectacular top-end chases One Piece has ever printed, and none of that changes the arithmetic. On average you're paying a dollar for 24 cents of cardboard.
OP13 released November 7, 2025 as the thirteenth main booster and the game's third-anniversary set. The theme is Ace — his death at Marineford and everyone who inherited what he left behind: Luffy, Sabo, Whitebeard's crew, and a Roger-era supporting cast reaching back to the very start of the story. Twelve cards per pack, one hit slot, and an enlarged Secret Rare pool of 18 cards. Because it's an anniversary set, Bandai loaded it with showpiece treatments: manga-style Super Alternate Arts, Wanted Poster secrets, gold- and silver-stamped SP reprints of older chase cards, and a Treasure Rare sitting at the top of the odds table.
The chase: one Sabo to rule the print run
The headline cards in our snapshot, all from the hit-slot lottery:
- Sabo (Red Super Alternate Art) — about $4,800
- Monkey.D.Luffy (Super Alternate Art) — about $2,100
- Shanks SP (Gold, OP09 reprint) — about $1,670
- Portgas.D.Ace (Super Alternate Art) — about $1,275
- Sabo (Super Alternate Art) — about $755
- Five Elders parallel rares — roughly $430–$540 apiece, all five of them
Below that, the Wanted Poster secrets of Ace and Luffy run about $444 and $340, the alternate-art Divine Departure books near $90, and leader alternate arts sit between $14 and $50. Then the floor drops out. Regular Super Rares in this set trade for $0.25 to $3.75, leaders for pennies, and the commons are bulk on arrival. That's the One Piece pattern in its purest form — alt-art premiums carry essentially all of the set's value, and the playable versions of the same cards cost less than the sleeve you'd put them in.
Pull rates: a 5% secret slot doing all the work
The calculator models OP13's hit slot with community estimates — Bandai publishes no official odds — at roughly:
- Super Rare: ~55% of packs
- Alternate-art Leader: ~25%
- Rare baseline (miss): ~14%
- Secret Rare: ~5%
- Treasure Rare: ~1%
A 5% Secret Rare slot means one SEC per 20 packs, or a bit over one per box — spread across an 18-card pool where most versions are two-figure cards, not the $4,800 Sabo. The Treasure Rare at 1% works out to one per hundred packs: about $1,140 in loose packs — nearly three booster boxes' worth of spending — per expected copy. The math on chasing any specific top-end treatment is grim enough that we'd file it under entertainment, not acquisition — the same variance lesson covered in how pull rates actually work.
Products: the box costs more than the packs inside it
| Product | Price | EV | Margin (after ~15% fees) |
|---|---|---|---|
| Booster Pack | $11.42 | $2.71 | -80% |
| Sleeved Booster Pack | $17.74 | $2.71 | -87% |
| Booster Box (24 packs) | $408.31 | $64.97 | -86% |
Look at the box line twice. Twenty-four loose packs cost about $274; the sealed box costs $408. That's a $134 premium for the same packs in nicer cardboard — sealed collectors pay it for hold value and the shot at an untouched anniversary box, but if your plan is to rip, the box is strictly the worst way to buy these packs. The sleeved packs at $17.74 land in the same place: identical cards, -87% after fees. If you must rip OP13, loose packs at $11.42 are the least-bad option, which is a strange sentence to write about a product losing 76 cents on the dollar before fees. Run the live numbers for this set on the Worth the Rip calculator and you can watch the margins update against current singles prices.
Verdict: singles, and it isn't close
Three lanes:
- Playing the game? Buy singles and be done in an afternoon. Every regular SR in the set costs under $4, leaders are quarters, and a full competitive playset of OP13's staples costs less than four packs.
- Chasing the art? Buy the exact treatment you want. The $755 Super Alt Sabo or the $340 Wanted Poster Luffy are real money, but they're known money — a fixed price beats a 1% lottery with a $1,140 expected ticket cost every time.
- Buying the box to hold? Defensible, but you're already paying a $134 premium over loose packs, so a chunk of the anniversary appreciation is priced in on day one. Anniversary sets also get printed like Bandai means it.
Rip a few loose packs for the Marineford nostalgia if you want — just price it honestly at about $8.70 of expected loss per pack, the going rate for a very good story.
FAQ
What is the most expensive card in OP13?
The Sabo Red Super Alternate Art, at about $4,800 in our July 2026 snapshot. The manga-art Luffy runs around $2,100 and the gold SP Shanks reprint about $1,670.
What's the Treasure Rare pull rate in Carrying On His Will?
No official odds exist. Community estimates put it near 1% of packs — roughly one per hundred packs, or more than four booster boxes on average.
Is an OP13 booster box worth buying?
Not to rip: $408 buys about $65 of expected value, and the box costs $134 more than the same 24 packs bought loose. As a sealed hold it's a bet that anniversary demand outruns an anniversary-sized print run.