BombCrypto hero rarities, explained

Rarity is a hero's most important trait in BombCrypto: it sets the base stat ranges, the number of abilities and, to a large extent, the market value. This guide explains the ten rarities, what changes between them and the real odds of each when you mint.

The ten rarities

From most common to rarest, the tiers are: Common, Rare, Super Rare, Epic, Legend, Super Legend, Mega, Super Mega, Mystic and Super Mystic. The first six can come directly from minting; the four higher ones (Mega onward) are obtained by fusing heroes.

Stats by rarity

Each rarity sets the range within which the main stats are rolled at mint. The values below reflect the base configuration of the game's design contract for the six mint tiers. Power, Speed and Stamina are rolled within the range; Bomb count and Range grow at a fixed amount per tier.

Minting probabilities

When you mint a random-rarity hero, the contract draws the tier using fixed weights. In the observed configuration, the weights are proportional to these values: Common 8287, Rare 1036, Super Rare 518, Epic 104, Legend 52, Super Legend 4. Converted to percentages:

Theory vs. practice: why we see nearly 96% Common

Here's an analysis only possible with on-chain data. The theoretical chance of Common is ~82.86%, but when we measured thousands of real mints on the network, the observed share of Commons reaches around 96%. The difference isn't a contract bug — it's player behavior.

Minting has a limited processing window (explained in detail in our minting guide). Players who wait too long to process the request let the random seed expire, and the contract then forces Common rarity. In other words: many of the Commons appearing on the network weren't rolled as Common — they were downgraded by delay. Processing the mint quickly preserves the real odds of the better tiers.