Youko Kenshi
Wait, he had a rock type! But this Geodude was going to become a grappler, a heavy weight champion under his guide. How could he just- "Where do I need to sign?" he asked GRAY, putting the Pokemon up for trade.
"Trade accepted. Isn't it sad though? That Geodude doesn't even know you yet and you're already using it as a bartering token. Oh well, maybe you'll be a better trainer to this Chimchar than the last one...doubtful, but maybe." With that said Geodude's Pokeball would vanish into thin air once placed on the trading machine, another Pokeball soon appearing from the same spot which would contain a Chimchar.