Wildfire is a non-damaging Fire-type move. It is available as TM114 in-game.
Wildfire is a status move that inflicts burns on the target if it manages to hit them. It will hit both targets in double battles.
Additionally, if the target is a Grass-type Pokémon, then Wildfire will also burn every Pokémon in the target player's party that possesses a weakness to Fire-type attacks.
1) Burns the foe. If it is a Grass-type Pokémon, burns all Pokémon in their party weak to fire.
2) While its primary cause is to burn the opponent, if a foe is Grass-type it will burn all Pokémon in their team weak to [sic]