Arcanine

Arcanine is one of RarelyUsed's prominent Fire-type Pokemon because it has the stats, movepool, and abilities to shine as a wallbreaker. Thanks to its good offenses and movepool, Arcanine can reliably 2HKO almost every defensive Pokemon in the metagame as well as threaten Stealth Rock setters such as Necrozma, Metagross, and Registeel. Flash Fire notably allows it to be one of the best counters to Ninetales in the tier. Arcanine also has a good Speed tier, outpacing offensive threats such as Roserade, Gardevoir, and Metagross. Despite those great traits, Arcanine's biggest flaw is that it is easily worn down by Stealth Rock, Flare Blitz recoil, and Life Orb, limiting the number of times it can safely switch in and compromising its potential as a check to Fire-types. Arcanine relies heavily on prediction, so one wrong prediction can leave it helpless against Pokemon such as Milotic, Mega Blastoise, and Golisopod. Fast threats such as Raikou and Zygarde-10% as well as common Choice Scarf users such as Tyrantrum, Drapion, and Flygon can outpace Arcanine. However, Extreme Speed does help against these threats if they are weakened. Arcanine faces competition as a Fire-type from Ninetales and Salazzle, which have better Speed tiers, boost their stats, and, in Ninetales's case, can reliably OHKO bulky Water-type Pokemon with Solar Beam. Arcanine also has competition as a Fire-type check with Houndoom, as Houndoom can also check Psychic-types and has a better matchup against bulkier teams.