Armor of Pyrlakas

A protective force of the sun surrounds you, manifesting as a burning fire or radiant light 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 or radiant damage. You must choose whether you gain the fire or radiant at the time of casting this spell.

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/radiant damage increase by 5 for each slot.