Ability · Gen 6 · 8 Pokémon
Protean
This Pokemon's type changes to the type of the move it is using. Once per switch-in.
This Pokemon's type changes to match the type of the move it is about to use. This effect comes after all effects that change a move's type. This effect can only happen once per switch-in, and only if this Pokemon is not Terastallized.
Protean was introduced in Generation 6. 8 Pokémon and forms can have it (7 as a hidden ability).
Best Pokémon with Protean
Ranked by usage in public Pokémon Showdown battles (Champions VGC first, then National Dex OU, SV OU and Champions Singles), with how many of each Pokémon's sets actually run Protean.
Pokémon with Protean
As a regular ability (1)
As a hidden ability (7)
Protean FAQ
What does Protean do?
This Pokemon's type changes to match the type of the move it is about to use. This effect comes after all effects that change a move's type. This effect can only happen once per switch-in, and only if this Pokemon is not Terastallized.
Which Pokémon have Protean?
8 Pokémon and forms can have Protean, 7 of them only as a hidden ability: Kecleon, Froakie, Frogadier, Greninja, Mega Greninja, Sprigatito, Floragato and Meowscarada.
Is Protean a hidden ability?
It depends on the Pokémon. Kecleon, Froakie, Frogadier, Greninja and Sprigatito have it as a hidden ability, while Mega Greninja can have it as a regular ability.
What are the best Pokémon with Protean?
By competitive usage, the most used Pokémon that can have Protean are Meowscarada (#99 in Champions VGC, 89.5% run Protean), Mega Greninja (#175 in Champions VGC, 100% run Protean) and Greninja (#192 in Champions VGC, 67.1% run Protean).
Effect text from Pokémon Showdown (MIT); which Pokémon have it from Showdown's Pokédex, cross-checked against PokéAPI. Unofficial fan site.