Ramanas Park is one of the big new features added to Pokémon Brilliant Diamond and Shining Pearl.
You'll find it at the end of Route 221, but it only unlocks after you've beaten the Pokémon League and completed the Sinnoh Pokédex.
When you enter, you can exchange Mysterious Shards for Slates by talking to the receptionist.
These Slates are then used to summon Legendaries at their corresponding caves.
Which Slates do you need for each Legemdary Pokémon?
The first thing to be mindful of is that the receptionist doesn't have all the Slates from the start. New ones are unlocked as you catch the available Legendaries.
To have a Legendary reappear in the cave, you'll need to purchase another Slate.
Each Slate will set you back either three Mysterious Shard S or one Mysterious Shard L.
Legendaries:: Regirock, Regice, Registeel
Unlocks: From first entering Ramanas Park
Room: Discovery
Legendaries: Latios, Latias
Unlocks: Catch all three Discovery Legendaries
Room: Soul
Only in Brilliant Diamond.
Legendaries: Raikou, Entei, Suicune
Unlocks: Catch all three Discovery Legendaries
Room: Johto
Only in Shining Pearl.
Legendaries: Articuno, Zapdos, Moltres
Unlocks: Catch all three Discovery Legendaries
Room: Kanto
Only in Brilliant Diamond.
Legendary: Ho-Oh
Unlocks: Catch all three Johto Legendaries
Room: Rainbow
Only in Shining Pearl.
Legendary: Lugia
Unlocks: Catch all three Kanto Legendaries
Room: Squall
Legendary: Kyogre
Unlocks: Catch all three Johto Legendaries or all three Kanto Legendaries
Room: Oceanic
Legendary: Groudon
Unlocks: Catch all three Johto Legendaries or all three Kanto Legendaries
Room: Tectonic
Legendary: Rayquaza
Unlocks: Catch all three Johto Legendaries or all three Kanto Legendaries
Room: Stratospheric
Legendary: Mewtwo
Unlocks: Catch all three Johto Legendaries or all three Kanto Legendaries
Room: Genome
Legendary: Giratina (Origin Forme)
Unlocks: Catch all three Discovery Legendaries; and catch Giratina in the Turnback Cave. This unlocks after completing the Sinnoh Dex, and can be found off Route 214.
Room: Distortion
Continuing with the theme of recognising save data, Pokémon Brilliant Diamond and Shining Pearl players will be able to pick up the Mythical Pokémon Jirachi and Mew if they have played previous Switch releases.
