Desiccation

You touch a creature and extract the liquid from it. The target must make a Constitution saving throw, taking 2d10 necrotic damage on a failed save and become poisoned until the spell ends. At the end of each of its turns, the target must make a Constitution saving throw, taking 2d10 necrotic damage on a failure. On a success, the spell ends on the target. Creatures that contain no liquids are unaffected by this spell. A creature killed this way turns into a pile of dry dust.

At Higher Levels When you cast this spell using a spell slot of 3rd level or higher, this spell does an additional 1d10 damage for each slot level above 2nd.