I like how demonstrated chandelure's special wallbreaking power on primarily physical walls like quagsire, gliscor and hippowdon. Also, why are you using a modest nature on something that is supposed to be a revenge killer, and who the hell A. uses forretress and B. Would either keep it or ferrothorn in against a fire-type? Chandelure might be able to trick the blobs a choice item, but they still wall it to hell and back. Zard-X's rising popularity on stall also shuts down chandelure.Its Scarf set is a wallbreaker because no wall bar Chansey/Blissey that doesn't resist Fire-type attacks really wants to take a Overheat to the face. And the pink blobs can get shut down by Trick. Some of those who resist Overheat have to fear its other STAB. For example, Slowbro and Tangrowth are sometimes seen in stall teams as they form a nice Regenerator core.
252+ SpA Chandelure Shadow Ball vs. 252 HP / 0 SpD Slowbro: 374-444 (94.9 - 112.6%) -- guaranteed OHKO after Stealth Rock
252+ SpA Chandelure Overheat vs. 252 HP / 0 SpD Assault Vest Tangrowth: 584-690 (144.5 - 170.7%) -- guaranteed OHKO
252+ SpA Chandelure Overheat vs. 252 HP / 0 SpD Tangrowth: 876-1032 (216.8 - 255.4%) -- guaranteed OHKO
252+ SpA Chandelure Fire Blast vs. 252 HP / 0 SpD Assault Vest Tangrowth: 494-584 (122.2 - 144.5%) -- guaranteed OHKO
252+ SpA Chandelure Fire Blast vs. 252 HP / 0 SpD Tangrowth: 744-876 (184.1 - 216.8%) -- guaranteed OHKO
Oh, you think Quagsire can wall it? Let's see:
252+ SpA Chandelure Energy Ball vs. 252 HP / 0 SpD Quagsire: 664-784 (168.5 - 198.9%) -- guaranteed OHKO
252+ SpA Chandelure Shadow Ball vs. 252 HP / 0 SpD Quagsire: 220-261 (55.8 - 66.2%) -- guaranteed 2HKO after Leftovers recovery
Even Shadow Ball kills it in 2 hits, meaning Quagsire can't really switch into Chandelure at all.
Now what about Gliscor?
252+ SpA Chandelure Fire Blast vs. 252 HP / 0 SpD Gliscor: 271-321 (76.5 - 90.6%) -- guaranteed 2HKO after Poison Heal
252+ SpA Chandelure Fire Blast vs. 252 HP / 200+ SpD Gliscor: 195-231 (55 - 65.2%) -- 96.1% chance to 2HKO after Poison Heal
252+ SpA Chandelure Hidden Power Ice vs. 252 HP / 200+ SpD Gliscor: 288-340 (81.3 - 96%) -- guaranteed 2HKO after Poison Heal <=== Chandelure can run HP Ice to threaten Dragonite, Salamence, Landorus and Gliscor)
Heatran:
252+ SpA Chandelure Hidden Power Ground vs. 252 HP / 0 SpD Heatran: 296-352 (76.6 - 91.1%) -- guaranteed 2HKO after Leftovers recovery
252+ SpA Chandelure Hidden Power Ground vs. 252 HP / 252+ SpD Heatran: 216-256 (55.9 - 66.3%) -- guaranteed 2HKO after Leftovers recovery
252+ SpA Chandelure Hidden Power Ground vs. 4 HP / 0 SpD Heatran: 296-352 (91.3 - 108.6%) -- guaranteed OHKO after Stealth Rock
Hippowdon:
252+ SpA Chandelure Overheat vs. 252 HP / 0 SpD Hippowdon: 331-391 (78.8 - 93%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
Not even going to talk about Ferrothorn and Forretress.
I never said the SubSplit set gets past Mega Zard X - just that it has the potential to kill two Pokemon on a team with that set. It can catch Talonflame using Flare Blitz and set up a sub as the bird is forced to switch out. The reason it isn't outclassed by Gengar in my opinion is its access to Fire-type moves, which allow it to get past Ferrothorn, Mega Scizor, Mega Mawile and Skarmory with ease, its higher Special Attack and its ability.
I'm comparing Chandy to Zard Y and Volcarona for a simple reason - they are all Fire-type special nukes/sweepers.
Also, how is chandelure KOing 2 pokemon? The situation as I see it is that chandelure comes in for free (not an easy thing to accomplish BTW) and sets up a sub as opponent switches out. Incoming pokemon breaks sub and chandelure KO's it. Next pokemon comes in and either threatens chandelure int switching out, or just kills chandelure. That's 1 pokemon gone, and a smart player won't easily let you get another sub up.
Gengar 2hko's both ferrothorn and skarm, and come very close against mawile if SR is applied. The only thing you mentioned that gengar can't get past is Mega-Scizor, who is wary of Gar's SubWisp set. Finally, If you are comparing chandy to Zard-Y, you might want to mention how Zard-Y almost completely eclipses it.