Armor of the Inferno

A protective magical force surrounds you, manifesting as a spectral flame 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 fire damage. It also creates bright light up to 20 feet, and dim light for another 20 feet. If an enemy casts a spell that would deal cold damage to you, you take no damage, but the spell fades.

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