your determination to rise above your enemy’s to always have a final chance to defeat your foes and to live another day to keep on fighting
if your reduced to or below 0hp you can make a single melee or a single ranged attack against the creature that reduced you to 0hp as a reaction
if you reduce a creature to 0hp as a result of this ability you instead drop to 1hp
once you use this ability you can’t use it again until the end of your next short or long rest