Warding Shield

You channel the powers of your arcane ward. The magic used for protection is amplified and projected onto three creatures within range. Each creature gains temporary hit points equal to your arcane ward's current hit points for the duration of the spell. This temporary hit points loss does not count as damage dealt to the creature. 

Your Arcane ward hit points is reduced to 0 and does not regain any from this spell. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the duration is increased by 1 per spell level.