As an action, you drain the moisture from a creature that you can touch or see within 10 meters. The creature must make a Fortitude saving throw, which it does with disadvantage if it is a plant creature, a magical plant, or a creature made of water such as a water elemental. If the creature has no moisture in its body, the spell has no effect on it.

On a failure, it takes 5d6 necrotic damage and is exhausted 1 until it rehydrates. This exhaustion does not accumulate with other forms of exhaustion due to dehydration.

On a critical failure, it takes twice as much damage and is exhausted 2 until it rehydrates. This exhaustion does not accumulate with other forms of exhaustion due to dehydration.

On a success, it takes half as much damage.

On a critical success, it takes no damage.

Augment

You can increase the damage by 6d6 for each additional mana expended.