During a single playthrough of Pokémon Legends: Arceus, Trainers will be able to obtain both Legendary Pokémon, Dialga and Palkia, yet what fans might not know is that they can also acquire the ability to change their forms as well. These two new Origin Forms for Dialga and Palkia slightly alter two stats while keeping the same total base stats. More specifically, Dialga's Origin Form in Pokémon Legends: Arceushas lower Attack but higher Special Defense. On the other hand, Palkia's Origin Form increases Attack but decreases Speed. The difference for the Legendary Pokémon forms in both cases is a stat change of 20.
To unlock the Origin Forms for Dialga and Palkia in Pokémon Legends: Arceus, Trainers must first complete the main storyline to receive two new quests: Requests 89 and 90. Request 80, "The Diamond Clan's Treasure," requires players to battle against Adaman of the Diamond Clan. Similarly, Request 90, "The Pearl Clan's Treasure," tasks Trainers with defeating Irida of the Pearl Clan in a Pokémon match. It is recommended that Arceus fans have a Star Rank of 8 before undertaking these Requests.
Related: Prelude Beach — Pokémon Legends: Arceus Mission Guide
To start "The Diamond Clan's Treasure," players must speak to Adaman, who can be found beside Lake Valor in the Crimson Mirelands of Pokémon Legends: Arceus. He will challenge the Trainer to a battle, simultaneously dispatching a party of three Eevee evolutions: Vaporeon, Leafeon, and Umbreon. During the fight, players should focus on taking out the Level 32 Vaporeon and Umbreon first since they are weaker than the Level 64 Leafeon. A few effective matchups for this duel would be Hisuian Decidueye, Lucario, or Togekiss. Once Adaman is defeated, he will reward
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