Armor of Corros

You encase yourself in a caustic ward that eats away at those who strike you.

You gain 5 temporary hit points for the duration. While you have these temporary hit points, any creature that hits you with a melee attack takes 5 acid damage, as corrosive energy reacts violently at the point of impact.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, both the temporary hit points and the acid damage increase by 5 for each slot level above 1st.