Chask´s Acid Erosion

Description

You unleash a corrosive spray of acid at a creature within range, targeting their armor, shield, or natural defenses. Choose one creature you can see within range. That creature must make a Dexterity saving throw. On a failed save, the target takes 5d6 acid damage, and its Armor Class (AC) is reduced by 2. On a successful save, the target takes half damage, and its AC is not affected.

A creature can attempt to  neutralize the acid using their action, ending the AC penalty if they succeed on a  Constitution saving throw against your spell save DC.

NOTE: Creatures cant neutralize the acid Ac penalty on Armor, you cant stack multiples instances of reduced AC by using this spell multiple times.