Tier: 2-B, 2-A, High 1-A in Mega Form
Summary: Created in a lab, is the World's strongest Pokémon
Gender: We just call him a dude
Powers and Abilities: The Strongest Psychic Powers to ever exist, he can also use Electric Moves, Fire Moves, Ice Moves, Water Moves, Flying Moves, FIGHTING MOVES, and much more. He can Teleport, Fly, Wipe Away your memories, and has Mind Control.
Attack Potency: At least Multiverse Level because he's the strongest Pokémon, meaning he's stronger than Arceus. Likely Multiverse Level+ because he's stronger than Kecleon (Mystery Dungeon). High Outerverse Level in Mega Form (Is far superior to beings that are beyond all dimensional scale) (Wiped out an actual Outerverse).
Stamina: Near Infinite because he's able to put up with your crap for hours on end without complaining
Speed: Above Infinite because his speed stat is higher than that of Arceus's. Instant with Teleportation
Lifting Strength: He lifts, he definitely lifts
Striking Strength: Multiversal+ in Base form, High Outerverse Level in Mega Form
Intelligence: Really High, can Speak, Fight, and do so effectively. He also built a GIANT LAB FOR CLONING POKÉMON!
Standard Equipment: None
Weaknesses: Dark Moves, Bug Moves (unless in Mega Mewtwo X Form), and Ghost Moves
Notable Wins: Frisk
Notable Losses: Gokario (They were both 2-A)
Inconclusive Matches: Mega Rayquaza (Wanked)