Mr. DeSoto thought about what he could do to make this worse for when Matt got this body back, and then he realized, that if Matt can speak, he can probably convince people to treat him somewhat normally, or maybe even convince them to take him to DeSoto's house, and get the wand back.
''I wish this body was incapable of speaking, only able to make gibberish like a baby.''
A second after he said that, he realized his mistake. Fuck.
He tried to say something, but everything that came out, was baby gibberish, just like the wish had said, he couldn't make any wishes now. He was stuck as Keri... Unless, he could somehow make the teenage girl wish him back, that was his only hope currently, which seemed extremely hard, but perhaps doable...