Alicia/Ariel did have the elemental advantage here, though it was evident that it was cancelled out quickly by the simple fact that the lich had a lot longer to get used to his powers, while she was just learning and discovering them for the first time, being almost a bran new creation. The result was the binding of a shadowed tentacle sweeping under her leg and wrapping around her thigh to trip her up. She didn't hit the ground, her wings beating beneath her as she managed to stay air borne, and retaliate with a spell of her own, in a split second reaction, casting a more concentered healing spell directly at the lich. While this kind of magic would heal mortal wounds and save their lives, it was the kind of magic that was also the bane of the undead. Even if she could only fracture his physical body for the time being, she'd have to do what she could, a sphere of light becoming visibly through the eye sockets of the hollow skull as it started to expand outward from inside the skeleton's skull and chest, reacting violently when faced with this much dark energy in a war to eat away at the each other and force out the dark magical influence animating the skeleton.