Action: Makes Me Stronger

Trigger You take damage from your heroic weakness and are not reduced to fewer than 1 Hit Point by the damage

Effect You make a show of powering through your weakness, be it by flexing your muscles, issuing a challenging roar, laughing off the pain, or simply acting as if the damage doesn't worry you in the slightest. Your spells gain a status bonus to damage against the triggering creature equal to twice their rank; this lasts until the next time you use this reaction. In addition, the creature that damaged you with your heroic weakness must attempt a Will save against your class or spellcasting DC, whichever is higher, to avoid becoming Frightened 1 (Frightened 2 on a critical failure).