For Mantyke's evolution to occur in Pokémon Legends: Arceus, Trainers must put a specific Water-Type Pokémon into the party with Mantyke.

Mantyke is a Water and Flying-Type Pokémon in Pokémon Legends: Arceus that evolves into Mantine when a specific Pokémon is added into its party. Trainers can encounter Mantyke within the bay of Cobalt Coastlands, particularly in the waters between Gingko Landing and Tranquility Cove. To traverse through water, players will need Basculegion, a Water and Ghost-Type Big Fish Pokémon that Trainers can ride in Pokémon Legends: Arceus.

To get the Basculegion Mount in Arceus, players must unlock the tenth mission of the main storyline, "The Lordless Island." Following the events of the previous quests, "The Lordless Island" has Trainers investigate the Cobalt Coastlands for the frenzied Noble Pokémon, Hisuian Arcanine. After fighting a Trainer battle and traveling to several locations, players are tasked with capturing Dusclops and bringing it back to Warden Iscan. Once this assignment is complete, players can summon Basculegion as a Ride Pokémon. Next, players can swim out to Tranquility Cove on Basculegion and catch Mantyke.

The best way to catch Pokémon in the water is by jumping into the air and holding the throw button to slow down time, making it easier to cast a Poké Ball in Pokémon Legends: Arceus. Once players capture Mantyke, the next step is catching Remoraid. By placing Remoraid in the party with Mantyke, the Mantyke will be able to evolve into Mantine.

Mantyke Evolution Guide For Pokémon Legends: Arceus

Fortunately, Trainers can encounter Remoraid within the same area as Mantyke. From the location where they found Mantyke, Trainers can head out slightly further in Cobalt Coastlands' Tranquility Cove to locate Remoraid. Using the same throwing method mentioned above, players can catch Remoraid and place it into their party to evolve their Mantyke into Mantine. Mantine shares the same qualities as Mantyke, including identical Dual-Type characteristics and Moveset. The main difference between Mantine and Mantyke is the stat improvements that the evolution provides. When compared with Mantyke, Mantine features the following stat changes:

• 80 HP: +40
• 40 Attack: +20
• 80 Special Attack: +20
• 70 Defense: +20
• 140 Special Defense: +20
• 70 Speed: +20

Additionally, by using Nature Mints in Pokémon Legends: Arceus, Trainers can change Mantine's Nature to maximize the development of its best or worst stats. Keep in mind that, as Water and Flying-Type Pokémon, Mantine is much more vulnerable to Electric-Types Moves from Pokémon such as Jolteon, Electivire, or Thundurus. For the best effectiveness in battle, it is advised players put Mantine against Dragon-Type Pokémon in Pokémon Legends: Arceus.

Next: Pokémon Legends: Arceus - "The Taste of Honey" Walkthrough

Pokémon Legends: Arceus is available on Nintendo Switch.