Biting Armor

You channel the never-ending hunger of a god of gluttony into one piece of nonmagical clothing or armor you can see within range, causing a fanged mouth to temporarily appear on it and bite its wearer. A creature in physical contact with the clothing or armor must succeed on a dexterity saving throw or take 1d6 piercing damage had have disadvantage on the next ability check or weapon attack roll it makes before the end of its next turn.

This spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).