Corrosive Strike

Your weapon becomes coated in a potent magical acid. The next time you hit a creature with a melee weapon attack during the spell’s duration, the attack deals an extra 2d6 acid damage to the target and its AC is lowered by 1 until the beginning of your next turn.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each spell slot level above 2nd.