Bloodletting Smite

You infuse your weapon with your own blood, empowering it with a vampiric curse. The first time you hit a creature with a melee weapon attack during this spell’s duration, the attack deals an extra 1d6 necrotic damage, and the target begins bleeding.

At the start of each of its turns, the target takes 1 damage for the duration of the spell (concentration, up to 1 minute).

This bleeding damage ends if the creature regains hit points or if another creature uses an action to staunch the wound with a DC 10 Medicine check.

Blood Cost. When you cast this spell, you take 2 damage that ignores resistance and immunity.