Death's Raiment

You drawl a soul fragment from the  remnants of a recently departed creating a protective dark shroud that surrounds you, manifesting as a spectral humanoid that covers you and your gear. You gain 5 temporary hit points for the duration. If a creature hits you with a melee attack while you have these hit points, the creature takes 5 necrotic damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, both the temporary hit points and the necrotic damage increase by 5 for each slot.