Pack Opening Simulator

One opening contains 14 cards: seven commons, three uncommons, one foil slot, two rare-or-better slots and one rune/token slot. Open another booster after revealing all cards.

Approximately 25% per booster with complete treatment pools. The simulator uses 12.961% in each rare slot and 1% in the foil slot. Ultimate upgrades can replace a rare-slot result.

8.16% for at least one alternate-art hit across the two rare slots, before Ultimate replacement. This includes supported showcase and Crystal Rose alternate art; special runes are separate.

1.384% per booster for at least one overnumber, including signatures, before Ultimate replacement. Cards must exist in the selected catalog.

0.139% per booster, approximately one in 720 openings. A signature replaces 10% of overnumber hits. Independent rolls never guarantee a hit after a particular number of packs.

0.05% in Unleashed, with at most one per booster. This is a simulator assumption; the published rate is only known to be below 0.1%. Other sets cannot roll this card.

Every booster has a foil slot: 70% Common, 25% Uncommon, 4% Rare and 1% Epic in this simulator. These weights are estimates, not disclosed factory collation. The rare-or-better slots are also foil.

4.167% for an alternate rune when available. Of the remaining rune slots, 10% become foil. Without alternate-rune artwork the simulator uses a basic rune. These rates are assumptions.

Cards are chosen uniformly within the eligible pool for their slot and treatment. A specific card's chance depends on how many matching cards the selected set has; special treatments and base versions have different odds.

No. Origins uses Riot's approximate published averages as a baseline. Later sets reuse that baseline where exact odds are unpublished. This simulator models independent rolls rather than factory box collation; unavailable treatments cannot be pulled.

The summary adds available USD market quotes for each card and finish, including duplicate copies. Unpriced cards are excluded and quote coverage is shown. Market estimates are not guaranteed sale prices.

Rare and Epic cards have reveal effects too. High-value cards can receive stronger effects when a market quote is available. Artist signatures have a dedicated multicolor celebration.

Complete numbered booster sets become available automatically from our card catalog. Incomplete sets and fixed starter products stay hidden.

No. This is a free simulator. It creates no purchase, collection entry or saved opening, and refreshing starts over.