Legendary Pokémon from previous generations are available in Brilliant Diamond and Shining Pearl, with most able to be obtained in just one version of the game.
In order to find them, you'll need to head to Ramanas Park. However, there are a few prerequisites:
Which Slate do you need to find Mewtwo?
Ramanas Park is a vast area made up of several caves, in which a specific type of Slate is requested.
In order to unlock Mewtwo, take the Genome Slate to the Genome Room and place it on the plinth.
To unlock this slate, you'll need to have caught all three Legendary Birds or all three Legendary Beasts. Check out the link at the bottom of this guide for Slate prerequisites.
Save your game before placing the Slate, so that you don't accidentally knock out Mewtwo in the ensuing battle.
Meet Mewtwo, the Genetic Pokémon
Capturing Mewtwo can be challenging. Here's what you need to know about the Genetic Pokémon.
Shiny Mewtwo
Mewtwo's shiny form is easily distinguishable from the base form, so you shouldn't miss it if you're looking to add the rare form to your collection.
Tips to make it easier to capture Mewtwo
Follow this advice to make catching Mewtwo easier:
- Use a Quick Ball at the very start of the encounter, and a Timer Ball if the battle lasts more than 10 rounds.
- Take a Pokémon with False Swipe to ensure you don't accidentally kill it.
- Take a Pokémon that can inflict Paralyze or Sleep.
- Pay attention to how much PP its moves have.
- Save your game right in front of it, before engaging.
A Dark-type Pokémon such as Absol is ideal against Mewtwo, as it will be immune to Mewtwo's Psychic-based attacks. Steel is also a good option, reducing Psychic damage by half.
If you accidentally knock it out, you will need more Genome Slates. Once you have captured it, you will not be able to re-summon it.
Additionally, upon exiting, an NPC will give you a Mewtwo Statue for your Secret Base.
