Conditional Effect on Critical

Conditional Effect on Critical is a passive effect that adds an effect to the unit upon a critical hit attack. The effect can stack with itself as long as they both do not provide the same active buff. In the case that they do, the effect will be based off of the reinforcement unit's Leader Skill and not the party unit's Leader Skill.
==Examples of Stacking==
*Azure Wanderer Colt’s 2~3 BC fill on Spark upon crit on his Leader Skill and Dark Path Arthur’s gradual 12 BC fill upon crit on her Leader Skill will stack, with the unit having 2~3 BC fill on Spark and gradual 12 BC fill upon a critical hit attack.
*Mai Shiranui (Omni)’s 100% Atk boost upon crit and Booming Charge Gandrei's 80% Atk boost upon crit will not stack. If Mai was the friend unit, her Atk boost on crit would be active and not Gandrei's. Likewise if Gandrei was the friend unit, his Atk boost on crit would be active and not Mai's.