Pokémon Legends: Arceus has changed the way evolution works, and many players are surprised to see that Pokémon no longer automatically attempt to evolve. Instead, players must manually have them evolve once the Pokémon has met specific conditions. One of these conditions is that the Pokémon must hold a Leaf Stone to unlock its next form.
You could force a Pokémon to evolve in earlier games if it leveled up while holding a Leaf Stone. However, with the new requirements, you’ll find that this is no longer possible for the vast majority of Grass Pokémon. You can only apply it to specific ones. Here is the list of all the Pokémon that require a Leaf Stone.
Note: The list below is based on preliminary information made available when the game was first released. We will update the list if we find that more Pokémon can use a Leaf Stone.
- Leafeon: Have an Eevee hold a Leaf Stone if you want it to evolve into Leafeon, one of its second forms.
- Hisuian Electrode: Have a Hisuian Voltorb hold a Leaf Stone to have it evolve into an Electrode.
Related: Where to find Eevee and how to catch in Pokémon Legends: Arceus
Once you give these Pokémon a Leaf Stone and evolve them, the Leaf Stone will be consumed. Since your primary goal in the game is to acquire every Pokémon for the Pokédex, you must get at least two Leaf Stones throughout the game to get all the evolutions listed above.
If you get multiple Leaf Stones at once, it’s best to not repeatedly evolve the same type of Pokémon with your spares. Instead, save the extra ones to use on the other Pokémon listed above that you haven’t discovered yet.
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