"Kid, it's me, Rex," he said calmly. "I can explain. Wolf and I were paired together, and I used some of her powers to blow away a Kishin. We're at Stein's now, and he says there was some sort of a rebound-- when I used her powers, I also gave her my abilities, and dark and holy energy don't always mix. If you can, head out to Professor Stein's place, okay?"