Rarities

Rarity, also known as Rank, is a property of an ally. Allies can be categorized into four rarities, from SSR to N.

SSR
SSR is the rarest allies. Obtainable only from Clan Member Contracts, Event Contracts, or by buying certain Packs.

SR
SR is below SSR. Obtainable from Friendship Contracts or any other contracts.

R
R is below SR. Some of them are obtainable for free after clearing certain stages.

N
N is the most common allies.