"Oh. Okay." He puts it back, setting it down carefully. "I'm... low on magic, too. I used a lot of it on bursting those anti-life bubbles. I -"

He paused, looking up and to the side for the moment. He could feel more than hear or see the new skill slotting into place. He'd never needed to be taught how a spell he used worked... it just sort of appeared in his mind.

"... I guess I used her enough to learn a new ability. More powerful than the lower chance one, but twice as draining."