Emboar up to A-/A
STAB Reckless Flare Blitz coming off of a 123 Atk stat is absolutely terrifying, even with a Scarf. And with pretty nice coverage, it seems like a solid A-Rank Pokemon to me. Not being able to be burnt is fantastic for a psychical attacker, and the Fire Typing lets it check so many things currently in the meta, as well as even a banded set not being bad, with
EonX explaining its usefulness in the Gods and Monsters RU stage. A lot of psychical walls right now are probably going to have nightmares of the banded set, which are cleanly 2HKOed by Reckless boosted moves, Emboar can even go mixed with a nice 100 SpA, carrying HP Ice on the scarf set in order to 2HKO Gligar after Stealth Rock or Grass Knot to 2HKO psychically defensive Rhyperior. I can't really see anything that can reliably wall Emboar atm, since it is pretty deadly, even when you know it is going to Flare Blitz, and if you do carry something for that, you end up being bopped by a strong coverage move. Though its low bulk and speed really hold it back, or else I would call it a A+ or S rank Pokemon right now, but the traits Reckless give Emboar makes it a great Pokemon and thus should rise to A- or A rank.