Ability · Gen 7 · 1 Pokémon
Battle Bond
After KOing a Pokemon: raises Attack, Sp. Atk, Speed by 1 stage. Once per battle.
If this Pokemon is a Greninja, its Attack, Special Attack, and Speed are raised by 1 stage if it attacks and knocks out another Pokemon. This effect can only happen once per battle.
Battle Bond was introduced in Generation 7. 1 Pokémon and forms can have it.
Best Pokémon with Battle Bond
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 Battle Bond.
Pokémon with Battle Bond
Special event ability (1)
Battle Bond FAQ
What does Battle Bond do?
If this Pokemon is a Greninja, its Attack, Special Attack, and Speed are raised by 1 stage if it attacks and knocks out another Pokemon. This effect can only happen once per battle.
Which Pokémon have Battle Bond?
1 Pokémon and forms can have Battle Bond: Greninja.
What are the best Pokémon with Battle Bond?
By competitive usage, the most used Pokémon that can have Battle Bond are Greninja (#192 in Champions VGC).
Effect text from Pokémon Showdown (MIT); which Pokémon have it from Showdown's Pokédex, cross-checked against PokéAPI. Unofficial fan site.