we must introduce another pokemon into the same environment."

"So sir, what kind of pokemon should we introduce into it's habitat?" the assistant asked, "it's not like we can just throw in any random pokemon into his cage."

"Your right, we should pick this one carefully" replied the scientist, "we should rule out Squirtle and any other shelled pokemon in case they get too fat for their shells. Or dark types, we don't want them hurting our subject in his state."

"I think I have an idea or two" commented another assistant.

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A day later, a lazier and bigger Lucario looked over his belly to see the scientist introducing a new pokemon into his cell. It was a...