Ability · Gen 6 · 1 Pokémon
Dark Aura
While this Pokemon is active, a Dark move used by any Pokemon has 1.33× power.
While this Pokemon is active, the power of Dark-type moves used by active Pokemon is multiplied by 1.33.
Dark Aura was introduced in Generation 6. 1 Pokémon and forms can have it.
Pokémon with Dark Aura
As a regular ability (1)
YveltalDark Aura FAQ
What does Dark Aura do?
While this Pokemon is active, the power of Dark-type moves used by active Pokemon is multiplied by 1.33.
Which Pokémon have Dark Aura?
1 Pokémon and forms can have Dark Aura: Yveltal.
Effect text from Pokémon Showdown (MIT); which Pokémon have it from Showdown's Pokédex, cross-checked against PokéAPI. Unofficial fan site.