How to get Manaphy and Phione - Pokémon Legends: Arceus
Read the request from the blackboard.
After you begin "Scaling Perilous Heights," you can obtain it.
The clues for The Sea's Legend can be found in the library at Canalave City in Pokemon Diamond and Pearl.
Mantyke, Buizel, and Overqwil are great Pokémon. They are fun to play with. You should add them to your team.
As the sun sets, go through the rocks that look like pillars in Cobalt Coastlands.
The mythical Pokémon Manaphy and Phione will appear inside the Seaside Hollow.
There are three level 35 Phione inside the cave. Manaphy is level 50.
Try to use Electric- or Grass-type Pokémon to attack the opponent. However, it is not necessary.
Try to Capture them when their energy is low.