Steven nods and pops open his briefcase. He pulls out a pair of pokeballs, one standard and the other great.

He releases one of the balls and Mesmer comes out, landing on the edge of the briefcase and very nearly upending it, if not for a quick save from Steven himself.

"Right. We're— basically going to have to brainwash the rotom, so I was hoping Mesmer could watch his dad and see how it's done. And then, maybe, hopefully, catch it?"

Look, rotom are incredibly fucking useful for crime.