I am not sure if this has been done already, but here goes something! Just pick one you like and make a description : > I'll start, as expected.
The Cancel Pokémon
Red Entry -> Commonly reffered to as M(FF), these pokémon display the ability to make any observer forget about something, so long as it remains near the target.
Blue Entry -> M(FF), as commonly called, can transplant the conciousness of a pokémon whitin the body of another. The pokémon needs time and care to get used to the new body, however.