Shapeshifting. Your standard variety. He'll be able to turn into any animal he's ever seen, including humans. I mean, might take some practice, but it's all basic stuff. And, uh, it ain't permanent. Can't hold a shape longer than a couple hours.

[Jesse keeps his hand firmly planted on Meowth's head while he talks. And... he can't help but give the ears a little scritch. It's a cat, okay. He wants to pet it. Meanwhile, the power transfer is actually occurring, but there's nothing obvious to signal it. No magical glow or anything. Only Jesse can tell it's actually happening.]