sentences:  However, once an HP attack is used, the character's own BRV is reduced to 0 and then slowly recovers to its starting amount.A character whose BRV total has been depleted (past 0 BRV and into the negatives) is forced into "Break mode", where, aside from not being able to cause HP and BRV damage (But being able to gain BRV), all attacks made against them cause critical damage and the opponent gets all of the BRV in the "Bravery Pool" (a number that can be seen at the bottom of the screen), massively boosting their BRV amount.One main feature of the combat system is the "EX Gauge", which can be filled in a variety of ways, such as inflicting damage on opponents, taking damage from opponents, and obtaining EX cores scattered around the field of play.