>>24602570Breloom, Keldeo, Mega Metagross, Scizor, Mega Venusaur, Mega Lopunny, Serperior, Celebi, Jirachi, Ferrothorn, Conkeldurr, Mega Medicham, Mega Pinsir, Scolipede, Volcarona, Mega Heracross, Hawlucha, Mega Gallade.
That's just the Talonflame-weaks in OU. There are plenty of other viable Pokemon in others tiers that Talonflame checks.