Choice Specs
Flash Fire
Modest / Timid
~ Overheat / Fire Blast
~ Shadow Ball
~ Hidden Power Fighting
~ Energy Ball
72 HP / 252 SpA / 184 Spe
Choice Specs Chandelure is an extremely powerful wallbreaker who can leave most opponents really hurting. STAB Fire / Ghost is complemented nicely by Hidden Power Fighting and Energy Ball, the former mainly for Tyranitar and Hydreigon, and the latter mainly for Water-type switch-ins such as Politoed. Immunity to the very common Fire- and Fighting-type attacks is extremely helpful for switching in, and Chandelure can spinblock against Forretress.
Sunny weather is where Chandelure truly shines. Its Overheat becomes absurdly strong, surpassed only by Sheer Force Darmanitan's Flare Blitz and Solar Power Charizard's Fire Blast, and its Fire Blast is almost as strong, though it does fall short of Victini's V-create and Heatran's Eruption. Unlike Darmanitan and Charizard, however, Chandelure suffers no recoil or recoil-like damage and has useful immunities to Fighting and Fire. This means that, barring entry hazard damage, Chandelure can potentially switch in multiple times and keep firing off its Fire-type STAB.