You conjure three small blue orbs to circle you until they die, you lose concentration, or you are knocked unconscious. these orbs each have 1D4 + your spellcasting modifier Hit Points and whenever you would be hit by an attack you may use a reaction to have one of your orbs reduce the damage taken by a number equal to their hit points. these small orbs glow with a blue aura and illuminate a 10 ft. area around you in dim light. in addition, you may as a bonus action transform one of these orbs into a single magic missile dealing force damage equal to their hit points to one target within 60 ft. 

when cast at higher levels you add one orb for each level above the second.