Trainers want to know which Pokemon need a Water Stone to evolve in Pokemon Legends: Arceus.
In Pokemon Legends: Arceus, the Water Stone is less of an important item than in previous titles. Whereas its counterparts, the Fire and Thunder Stones, have multiple Pokemon that require it to evolve, the Water Stone has a single use out of the 242 eligible Pokemon species native to the Hisui region.
Below, we’ve explained exactly which Pokemon that is and how to go about using the item.
All Pokemon Evolve Using a Water Stone
At the time of writing, the only Pokemon that requires a Water Stone to evolve is Eevee.
When exposed to a Water Stone, Eevee evolves into Vaporeon—one of its eight available evolutionary forms. Vaporeon, like the other Eevee-lutions, is a pure water-type.
Also known as the “Bubble Jet” Pokemon, Vaporeon’s molecular structure is strikingly similar to water. Researchers theorize that this is the reason it can hide itself in water so easily. Additionally, it is believed that mermaid myths and legends are actually the result of spotting a Vaporeon in the open ocean.
Like Vaporeon, the Water Stone has been a part of the Pokemon franchise since its advent in Generation I. Trainers were previously able to obtain a Water Stone using several methods including purchasing one from Department Stores and/or stumbling upon one in the wild. More information about how to get a Water Stone in Pokemon Legends: Arceus can be found in our Evolutionary Item guide.
To use a Water Stone, simply select it from the in-game inventory and apply it to Eevee. This will prompt Eevee to become eligible for evolution into Vaporeon.