He noticed what she was doing, felt it the moment she tried to pull the magic away from him. Why she was doing it was anyone's guess but he wasn't going to let it go that easy. Unlike Ray, he didn't specialize in any of the elemental magics (the closest would have been blizzard, thanks to Calum's affinity with water) so he'd have to think of a spell that would allow him to bypass Ray's efforts. Besides, he only had seconds to act.

He gritted his teeth in effort, taking a step back to balance himself and whispered, "Separare."

The lightning recoiled in the magic he sent flying towards her and abruptly separated with a clap of thunder from the water magic it had been entwined with so that two sources of magic were now headed towards Ray. It was easier to control the lightning better this way.