Armor of Esclarotta

A protective magical force surrounds you, manifesting as a spectral storm that covers you and your gear. You gain 5 temporary hit points for the duration. If a creature hits you with a melee attack while you have these hit points, the creature takes 5 thunder or lightning damage.

Roll 1d12, on an even number you are covered in Thunder energy, on an odd number you are covered in lightning energy for the duration of the temporary hit points

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