Pokemon Legends: Arceus has a prime example of that last point, as the ancient Sinnoh region--known ... A demonically-possessed fish is at this point normal for Pokemon games and its menagerie ...

Pokémon Legends: Arceus will send players to the Hisui region of the Pokémon world, the Sinnoh of the ancient past ... including one truly terrifying new fish: Basculegion.