Devouring Blade

You brandish the weapon used in the spell's casting and make a melee attack with it against one creature within 5 feet of you. On a hit, the target suffers the weapon attack's normal effects and then becomes coated in sizzling bile until the end of your next turn. If the target takes damage from this cantrip again while coated, they take an additional 2d4 acid damage, and the spell ends.

This spell's damage increases when you reach certain levels. At 5th level, the melee attack deals an extra 1d4 acid damage to the target on a hit, and the damage the target takes when struck again increases to 4d4. The damage rolls increase at 11th level (2d4 and 6d4) and again at 17th level (3d4 and 8d4).