Effulgent Spheres

Six elemental spheres orbit you. As a reaction when you take acid, cold, fire, lightning, or thunder damage, expend one sphere to gain resistance to that damage until the start of your next turn. As a bonus action, expend one sphere to make a ranged power attack against a target within 120 ft.; on a hit, it takes 10 (3d6) acid, cold, fire, lightning, or thunder damage.