Aveline's Warding Shield

You touch a creature and summon a spectral arcane shield to ward them from attacks. The next attack made against the user has disadvantage, and for the duration the target gains a +2 bonus to AC. Any damage that the user takes from an attack is instead applied to the ward; the ward has Hit Points equal to 5 + your spellcasting modifier. If the ward takes damage that drops it to 0 HIt Points, it breaks apart, and any excess damage is taken by the user instead. The ward's Hit Points can be regained by using a leveled spell slot of 1 or higher, which will heal for the double spell level.