Royal Blood Booster Box EV Calculator

Best Evidence — Japanese collation proxy

Evidence

This calculator is based on Best Evidence — Japanese collation proxy reviewed September 4, 2026.

Sources

• Royal Blood [OP-10] official English product page - Bandai Co., Ltd. (accessed 2026-09-03)
• TCGCSV category 68 group 23766, sealed product 586671 - TCGCSV (accessed 2026-09-03) — identity and pricing were imported into local generated artifacts; the calculator does not call the raw endpoint.
• Best Evidence — Japanese collation proxy and ordinary-pool classification - The Expected Value (accessed 2026-09-04)
• Japanese OP-10 six-card booster and set contents - Bandai Co., Ltd. (accessed 2026-09-04)
• OP-10 complete single Japanese box opening, published 2024-12-08 - Tubuke Blog (accessed 2026-09-04)
• Tin Pack Set Vol.1 separate DON!! promotion - Bandai Co., Ltd. (accessed 2026-09-04)

Limitations

• collation.cardsPerPack and collation.packsPerProduct: the product uses 12 cards per pack and 24 packs per English booster box; those physical wrapper counts do not establish rarity-slot probabilities.
• collation.caseStructure: box-level hit counts and display/case correlations are unresolved for the exact English North America printing.
• evidence.sample: null because no reviewed observation provides a complete, attributable sample with exact unit, size, method, North America printing, and observation interval.
• Modeling policy approved 2026-09-04: every supported ordinary card in the same slot, rarity, treatment, and finish pool receives one equal positive selection weight. This is a transparent modeling assumption where the publisher or empirical sample gives pool odds but not card-level sheet weights.
• Best Evidence — Japanese collation proxy: exact English wrapper and card-price identities are combined with an owner-approved Japanese-product collation proxy because a complete English rate ledger is not published. This is an estimate, not a factory guarantee.
• Only booster-pack slot counts and rarity probabilities are proxied. Card identities, treatments, TCGplayer Low prices, sealed-product identity, language, region, release date, and any explicitly modeled fixed bonus come from the exact English release.
• The proxy is first-order and product-family-specific. No display or case correlation is inherited, and no target is used as a donor for another target.
• Within each retained English rarity/treatment pool, exact positively priced card SKUs use equal positive weight where publisher sheet weights are unavailable.
• Per 24-pack English OP-10 box proxy: 170 Common, 60 Uncommon, 8 Leader, 2 parallel DON!!, 48 x 19/23 Rare, 48 x 3/23 Super Rare, and 48 x 1/23 regular Secret Rare expected cards fill 288 physical positions. These are marginal expectations from an assumed twelve-card pack allocation, not guaranteed box counts or a reconstructed English pack sequence.
• Replace this proxy when a complete, attributable English collation ledger or publisher rate table becomes available for the exact release.
• The reviewed OP-10 opening reports one Japanese box of 24 six-card packs: 85 C, 30 UC, 19 R, 4 L, 3 SR, 1 DON!!, 1 regular SEC and 1 SP, totaling 144. Scaling this small sample to the English 12-card wrapper is an explicit assumption; the opening author described this as a lucky box, so its frequencies must not be presented as population rates.
• The SP outcome is removed before drawing. Treating it as part of the rare-or-higher group is a modeling assumption because its physical slot was not recorded; that group is normalized across the observed ordinary Rare, Super Rare and Secret Rare mix of 19:3:1. No unsupported SP-to-Secret-only replacement, box hit guarantee, case correlation or no-duplicate rule is inferred. Sift and other user filters apply only after the complete product is drawn.
• The English ordinary pool contains 45 Common, 30 Uncommon, 26 Rare, 6 Leader, 10 Super Rare and 2 Secret Rare identities. All six SP identities, the English Portgas.D.Ace Treasure Rare, Trafalgar Law Manga, and unsupported game-card parallels remain absent before drawing. Regular-art Monkey.D.Luffy OP10-118 and Trafalgar Law OP10-119 remain eligible, using equal positive weights within each retained rarity pool.
• Booster DON!! product 624357 uses its exact English Foil price and contributes an expected 2/24 cards to embedded pack EV. DON!! occupies positions inside the 288-card wrapper; no 290-card total or box-only bonus is claimed. Tin Pack Set Vol.1 has its own separate DON!! promotion and does not add value to this booster-box SKU.
• Each modeled twelve-card pack contains 7 Common, 2 Uncommon, 1 guaranteed Rare, 1 filler and 1 upgrade draw. The filler uses 2/24 Common, 12/24 Uncommon, 8/24 Leader and 2/24 DON!!; the upgrade uses 15/23 Rare, 6/23 Super Rare and 2/23 regular Secret Rare. Slot assignment is an explicit modeling assumption because the source records only a box ledger. The two variable slots are sampled independently, preserving the normalized mean counts without fixed box hit totals. Simulated spread remains an approximation, not a measured English sealed-box distribution; replace it when an attributable English OP-10 pack or case ledger is available.
• No-chase redraw policy approved 2026-09-04: Curio, Enchanted, alternate-art, parallel, showcase, serialized, signature, premium-rarity, promotional, and any other card or treatment without a supported pull rate are excluded. A chase hit is redrawn from the applicable supported ordinary pool, so excluded cards occupy no modeled outcome.
• Simulation ordering is draw the complete disclosed no-chase product first, record that draw, and only then apply Sift or another user filter. Sift never changes or backfills the completed modeled draw.