Deathbite

As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the spell’s range, otherwise the spell fails. On a hit, the target suffers the attack’s normal effects, and it suffers additional 1d10 necrotic damage.

This spell’s damage increases when you reach higher levels. Both damage rolls increase by 1d10 at 5th level,  11th level and 17th level.