Ability · Gen 9 · 1 Pokémon
Opportunist
When an opposing Pokemon has a stat stage raised, this Pokemon copies the effect.
Opportunist was introduced in Generation 9. 1 Pokémon and forms can have it.
Best Pokémon with Opportunist
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 Opportunist.
Pokémon with Opportunist
As a regular ability (1)
Opportunist FAQ
What does Opportunist do?
When an opposing Pokemon has a stat stage raised, this Pokemon copies the effect.
Which Pokémon have Opportunist?
1 Pokémon and forms can have Opportunist: Espathra.
What are the best Pokémon with Opportunist?
By competitive usage, the most used Pokémon that can have Opportunist are Espathra (#63 in Champions VGC).
Effect text from Pokémon Showdown (MIT); which Pokémon have it from Showdown's Pokédex, cross-checked against PokéAPI. Unofficial fan site.