Brawlers can be unlocked by opening "boxes." The likelihood of unlocking a brawler upon opening a box depends on its rarity. Order of rarities from common to least common is as follows: common, rare, super rare, epic, mythic, legendary. Chromatic is a special rarity in which its likelihood of unlocking from boxes change over time. There is 1 chromatic brawler that is unlockable for free from purchasing the Brawl Pass. 