Corrosion

You hurl a dense sphere of highly corrosive acid at one creature in range, eating away at its defenses. The target must make a Dexterity saving throw, taking 5d4 acid damage on a failed save and its AC is reduced by 1d4 until the end of your next turn, or half as much damage on a success.

If the target is wearing armor, this spell might instantly destroy it. If the acid damage dealt by this spell is greater than the target’s AC, any non-magical armor or shields they are wearing are instantly destroyed, and their AC reduces accordingly.

At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d4 for each slot level above 3rd.