Cloak of Warding

This spell captures the energy from an incoming spell and transforms it into a protecting cloak of energy that swirls around you. You have resistance to the triggering damage and gain a number of temporary hit points equal to 3d8 plus your level. If you have any temporary hit points left over after taking the remainder of the damage, they last until they are used or you complete a short rest.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the number of temporary hit points you get increases by 1d8 for each slot level above 3rd.