>>37321808YELLOW; Charizard, Flareon, Rapidash, Moltres, Ninetales, Arcanine.
RUBY; Blaziken, Camerupt, Torkoal, Magcargo, Ninetales, Castform(Sunny).
HEARTGOLD; Typhlosion, Entei, Ho-oh, Magcargo(egg), Magmortar(trade), Blaziken(pokewalker)/Flareon.
BLACK; Emboar, Heatmor, Chandelure, Simisear, Reshiram, Victini(event)/Darmanitan(zen).
WHITE2; Emboar, Volcarona, Chandelure, Camerupt, Arcanine, Magmortar.
X; Delphox, Pyroar, Talonflame, Charizard(megaX), Houndoom, Chandelure.
OMEGARUBY; Blaziken, Camerupt, Torkoal, Groudon(red orb), Ninetales, Darmanitan/Arcanine.
There's one for S/M, one for USUM, and onr for LGPE that can't remember. As you see, there's various mono fire playthroughs. You just have to work a little harder to achieve it.
