80/100/100 isn't exactly bad defensive stats, its just its typing that sucks for it. And I agree that normal Glalie is most likely a better suicide spiker, its just on paper that it seems M-Glalie is a fantastic Pokemon to set up Spikes with, then explode. I'll leave this argument alone for now.Fair enough, I just listed Rotom-Frost because it resists everything Glalie can do. Yes, it has an incredibly powerful explosion, but I think it's a waste of potential because you're using the mega as a suicide spiker when regular Glalie can do the same, but with a weaker explosion, and a bit less speed. Regular can hold a sash too, which is pretty nice considering Glalie's defensive stats and typing. I mean, there's not a lot of competition for a mega slot, but a mega is usually the pokemon you build your team around. Using it as a suicide spiker is the exact opposite; not that such sets can't be effective.
I meant if M-Camerupt did not have either HP-Electric or Rock Slide.HP Electric is generally better because it hits all Water/Flying's except SpD Mantine (which is shit) harder than Rock Slide. So unless you want to hit other birds (Fire Blast probably hits them harder anyway), HP Electric is superior. Mantine does not counter HP Electric Camerupt at all by the way, it's a clean 2HKO.
252+ SpA Camerupt Hidden Power Electric vs. 248 HP / 252+ SpD Mantine: 180-212 (54 - 63.6%) -- guaranteed 2HKO after Leftovers recovery
Lunatone is a counter to non Flash Cannon Camerupt. Rock Slide may be a 2HKO, but so is Fire Blast. And it gets Moonlight, so it can stall it out with Toxic. I also never said that SpD Togetic is a counter, just that it can potentially stall it out. Yes, it hits insanely hard, and I can assure you that I don't underestimate its power at all, but its speed and 4x Water-type weakness really hold it back.
The fact that an irrelevant Pokemon like Lunatone needs to be brought up only to counter 1 set of Camerupt's is probably saying a ton about M-Camerupt's power. Sure, its speed is holding it back a lot, and while a lot of Water types hurt it, they can't really switch in and the ones that can, a.k.a. the bulky ones, can't even OHKO with a stab water attack.
0 SpA Poliwrath Scald vs. 252 HP / 0 SpD Camerupt: 252-300 (73.2 - 87.2%) -- guaranteed 2HKO
4 SpA Mantine Scald vs. 252 HP / 0 SpD Camerupt: 276-328 (80.2 - 95.3%) -- guaranteed 2HKO
8 SpA Prinplup Scald vs. 252 HP / 0 SpD Camerupt: 280-336 (81.3 - 97.6%) -- guaranteed 2HKO
4 SpA Wartortle Scald vs. 252 HP / 0 SpD Camerupt: 232-280 (67.4 - 81.3%) -- guaranteed 2HKO < lol