Consume Water

You can drain the water from the body of a living target within range of the spell. The target must make a Constitution saving throw. On a failure, the target takes 10d10 disruptive damage, gains one level of exhaustion, and can’t take any action for the duration of the spell. On a success, it takes only half the damage.

Regardless of the saving throw’s result, while you maintain concentration, at the start of your next turn you can use your action to force the target to repeat the saving throw, taking the damage again on a failure. If the target succeeds, you lose concentration on this spell.

Constructs and undead take half the damage.