Generation V Ability

Moxie

Raises Attack one stage upon KOing a Pokémon.

Moxie Effect

This Pokémon's Attack rises one stage upon knocking out another Pokémon, even a friendly Pokémon. This ability does not take effect when the Pokémon indirectly causes another Pokémon to faint, e.g. through poison or Spikes. If this Pokémon knocks out a Pokémon with Mummy, the former's ability will change without taking effect.

“When the Pokémon knocks out a target, it shows moxie, which boosts its Attack stat.”

Moxie Data

Introduced
Generation V
Pokémon
16
In short
Raises Attack one stage upon KOing a Pokémon.

Pokémon With Moxie

16 Pokémon can have Moxie.