The user's strength is boosted by its fallen friends. Each fainted or ailing ally raises the user's Attack stat.
The user's courage is bolstered by the final wishes of its afflicted and unconscious allies, each one spurring it on to greater strength as it fights for its team.
Raises the user's Attack by one stage for each party Pokémon that has fainted or is suffering from a major status condition. Hero Rally only counts Pokémon that have fainted or are afflicted and not empty party spaces. If Hero Rally is stolen by Snatch, the user of Snatch has its Attack boosted according to the number of its own fainted/afflicted party members, not the original user's. Fails if all of the user's party members are conscious/healthy, if there are no other Pokémon in the party or if the user is a wild Pokémon.