You replicate the effects of armor by using a piece of it as a magical focus. This protective magical force shimmers faintly around you, taking the shape of the armor from your focus component. You gain a 1d8 initiative + 5 temporary hit points. If a creature and/or being hits you with a melee and/or range attack while you have these hit points, the creature takes 5 cold 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 cold damage increase by 5 for each slot.

The spell ends last 8 Hours.