Hexblade's Curse

You gain the ability to place a baleful curse on
someone. As a bonus action, choose one creature.
The target is cursed for 1 minute. Until the curse
ends, you gain the following benefits:
-Bonus to Damage equal to profiency bonus
-Any Attack Roll of 19 or 20 is a critical hit
- If the target dies, gain hit points equal
to your warlock level + your Charisma modifier
You cant use this again until you finish a short
or long rest.