The Brawl Index, often abbreviated BI, of a power is the amount of damage a power does, expressed as a multiple of the base damage that the Brawl power does. It is used to compare the damage potential of different powers against each other. The Brawl power is available to every archetype and does very little damage, which is why it is used as the standard on which the damage of other powers is based. Note that the actual damage inflicted using various powers varies according to enhancements, damage buffs, enemies' damage debuffs, and enemy resistances.