Hero's Calling

Enraged by the situation you've been backed into, your Herione blood strengthens and your mental fortitude becomes unbreakable. While in this state you gain immunity to psychological damage, advantage on attack rolls (spells, ranged, melee), you're able to double your melee attacks every other turn, and double your highest spell level slots. After combat ends, you're knocked unconscious and take 1d8 Strain Damage.