If you have a good competitive moveset for Arcanine, post an answer below and upvote the best ones. Movesets for any of its pre-evolutions can also be shared on this thread.
Be sure to include full set details in your post, e.g. items, abilities, natures and EVs. Some detail, including the intended game mode for your set, is also appreciated. Access the full list of guidelines here.
Arcanine Pokédex and learnset for reference.
