Hunter's Rally

This ability can only be activated after taking damage from a melee, ranged or spell attack, and you must be able to make a melee weapon attack against an enemy creature on your next turn. On the first successful attack of your attack action you can heal damage equal to your hit dice times your proficiency modifier plus your constitution modifier (ex: 2D8 + 3). This ability can't be used again until you take damage again from one of the mentioned damage sources. This feat only works against creatures that bleed.