_{[Maybe he should explain it with cleaning supplies. Look, the tiny soaps turn into lots of bubbles. ...Gods, and knowing how this world worked he wouldn't be surprised if there was a Pokemon like that. There's already swords and keys.]}

Well... Yeah. They're really strong on their own, but sometimes it's easier for them to protect and fight for you when they're bigger. This guy, uh... Moose, he was really small when I first got him.

_{[He points to his 'gear to where the Purrloin is on his screen.]}

I don't really know anything about those ones, but that one'll probably evolve too. One of my other Pokemon was about that size until he evolved, now he's as tall as me.