Factors to Consider:
* Mewtwo's Remaining HP: The lower its HP, the better chance any Poké Ball will have of catching it.
* Status Conditions: A Mewtwo that is asleep, paralyzed, or frozen is much easier to catch.
* Poké Ball Type: Different Poké Balls have varying catch rates:
* Ultra Ball: A good all-around choice, offering a decent catch rate increase.
* Great Ball: A solid option, especially if you're low on Ultra Balls.
* Master Ball: This is guaranteed to catch Mewtwo, but it's extremely rare, and you should only use it for emergencies.
* Your Level: The higher your level, the higher your chance of catching Mewtwo.
Popular Strategies:
1. Status Conditions + Ultra Ball: This is the most common method. Use a Pokémon with moves like Thunder Wave (Paralysis), Hypnosis (Sleep), or Freeze-Dry (Freeze) to weaken Mewtwo, then throw an Ultra Ball.
2. Max HP + Ultra Ball: If you're struggling with status moves, you can try to lower Mewtwo's HP to near zero and throw an Ultra Ball. This strategy is riskier as Mewtwo may break free.
3. Master Ball: As mentioned above, this is the guaranteed catch but should be saved for extremely difficult encounters.
Recommended Approach:
* Prioritize Status Conditions: Aim to inflict Sleep, Paralysis, or Freeze on Mewtwo.
* Use Ultra Balls: Ultra Balls offer a good balance between catch rate and availability.
* Be Patient: It may take several attempts, so don't give up!
Important Note: You can't catch Mewtwo in the regular game, only in the post-game story. So, be sure to complete the main storyline before attempting to catch Mewtwo.