pyisic
Mewtwo is weak against ghost moves, bug moves and dark moves use these to your advantage.
mewtwo is a very powerful pokemon, especially when it knows a plethora of different typed moves such as: thunder bolt, poison jab, psychic, and shadow ball. those are the moves that my mewtwo knows, and it has never fainted.
It really depends upon how much they are trained and which moves they know. Mewtwo is stronger but Mew is more skilled. Presumably, if Mewtwo calmed down a bit and trained more, Mewtwo would have the advantage.
What moves do you want it to know?
ice beam psychic aura sphere recover
What moves do you want it to know (any move) and what level do you want it to be at?
Generally it's a matter of opinion. In terms of Psychic-Types, however, there are few that are as powerful as Mewtwo in terms of moves and stats. So, yes.
In Pokemon Diamond and Pearl Mewtwo learns the move Aura Sphere. However, in the other games Mewtwo learns all it's moves before it reaches level 100.
Mewtwo is good for beating the elite four (2nd turn), since it can learn moves like Flamethrower, Thunderbolt, Ghost Ball, Phsycic. All these moves are good since they're all special attacks and Mewtwo is one of the best Pokemon in sp.atk. These moves are also super effective versus almost everyone in the elite four and this enables you to beat the elite four fairly easy the 2nd time.
Mewtwo X and Mewtwo Y are two different forms of the Pokémon Mewtwo, each with distinct strengths. Mewtwo X has a more balanced physical and special attack capability, making it stronger in physical combat, while Mewtwo Y has higher special attack and special defense, excelling in special moves. Ultimately, the "strength" of each form can depend on the battle context and strategy used by the trainer.
Mewtqo,s moves are Psychic Safeguard Recovery and Swift P.S. Mewtwo is on Lv 70
It can learn Future Sight, Shadow Ball, Thunderbolt, Thunder, Flamethrower, Fire blast, Earthquake and many more moves.