He picks up a broken section of a mirror frame to use first, careless, and is in the process of tossing the now-glowing object into the mirrored room when Ilde calls out to him. He closes the door enough so that the accompanying BOOM! isn't quite so harsh, but it's still very startling - to the ants, anyway.

"Oh. Damn, gimme a minute-" He opens the door again and with a flick of his wrist there's half a deck of cards in it, fanned out, and a heartbeat later they're glowing a bright red-magenta color. He chucks them into the room in a wide spray, and then slams the door. A second later it's off its hinges.