Armor of Tinareth

You invoke the power of Tinareth, the Archangel of Faith, causing a powerful barrier of light to surround you. You gain 5 temporary hit points, and if a creature strikes you during this time they will take 5 points of light damage.

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