There are several effective strategies to beat Mewtwo, depending on the game context. One very common and easy approach is to use the move Toxic to stall and gradually wear Mewtwo down. For example, in Pokémon Let's Go, a Chansey with Toxic can be used: Chansey takes a hit from Mewtwo, then poisons Mewtwo with Toxic. The toxic damage increases each turn, and by using healing moves like Soft-Boil repeatedly, Chansey can survive long enough to defeat Mewtwo through poison damage. Having multiple Chanseys to support each other with Soft-Boil helps as well. Another good tactic is to leverage Pokémon with strong Dark-type moves or abilities, as Mewtwo is a Psychic-type Pokémon weak to Dark-type attacks. Mega Gyarados or similar dark type Pokémon are recommended. Also, Alakazam with Night Shade or Shadow Ball can help to build levels and stamina to beat Mewtwo. For Pokémon GO, the best counters include Pokémon like Necrozma - Dawn Wings, Mega Tyranitar, Mega Gengar, and others with Bug-, Ghost-, and Dark-type attacks since Mewtwo is vulnerable to these types. In raid or other battle formats, strategies like lowering Mewtwo's Special Attack with moves like Struggle Bug multiple times and using buffs like Sword Dance to raise your own Pokémon’s attack power can be effective. Preventing Mewtwo from using healing moves like Rest by tactics such as using Misty Terrain is also advised. In summary:
- Use Toxic to stall and poison Mewtwo (e.g., Chansey in Let's Go).
- Use strong Dark-, Bug-, or Ghost-type Pokémon and moves.
- In raid battles, reduce Mewtwo's Special Attack and boost your own attack.
- Use healing and support moves to sustain your team.
These tactics vary based on the specific Pokémon game but generally focus on increasing poison damage, leveraging type advantages, and sustained battling with proper healing and stat management.