BC Fill after taking damage

BC Fill after taking damage is a passive effect that boosts BB gauge of the unit by a certain amount upon taking a certain amount of damage. This effect can be stacked with itself.
==Examples of Stacking==
*Terra Halcyon Lance’s 8 BC fill after taking 5000 damage on his Leader Skill and Tenebrous Wings Reviora’s 10 BC fill after taking 5000 damage on his Leader Skill will stack, with the unit having 18 BC upon taking 5000 damage.