Atrium Armor

A thin coating of blood solidified around your body granting you protection. You gain 5 temporary hit points for the duration. When a creature hits you with an attack, It takes bludgeoning damage equal to 5 + your Constitution modifier.

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