Drown

This spell creates water in the lungs of a creature that you can see within range, causing it to begin drowning. The target must succeed with a Constitution saving throw or else drop to 10% of its maximum hit points. If the target is already below a quarter of its maximum hit points, it drops to 0 hit points instead and begins dying.

Creatures that do not require the use of lungs, such as undead or constructs are not affected by this spell.