Sorry, but did you actually read my post or did you assume the content? I am aware the onus is on my side, and that's why I put forth my argument and put forth counterarguments. I was asking for the other side to put forth an argument with substance and relevance.Because it exists in the metagame. The onus is on people who want it banned to prove why we're better off without it. It's not on people to prove that the status quo should remain. I've just been following the discussion while being too lazy to go for reqs but there's a ton of questions like how does it compare to scizor and why do we need it and they just aren't really relevant compared to the subject at hand. Whether or not it has a negative affect similar to scizor's doesn't actually matter if you want to prove that it has a negative effect which is so great that it should be banned. Personally I didn't think so last time and don't think so now since there's always certain threats that are dumb for certain types and sure it's worse for more matchups than just a sharpedo vs psychic HO but it's also one of those things where your one type has to get it together and try to blanket cover threats and beating sableye has a lot in common with beating general bulky shit like it's mostly worse for poison and other shitty or CT'ey types and otherwise just a generally good mon. At this point though it feels more like a tossup based on how much you hate it rather than people really throwing anything conclusive out there so who knows.
There's a difference between having a few types prepare for a threat and having 12/18 types prepare for a threat. When a supermajority of types, even those including the best types, are required to bend their team to beat Mega Sableye, that's a problem. When 4 of those 12 are required to use suboptimal, legitimately bad sets, that's a problem.Overcentralizing? What? Just because several types need to run counters to it makes it bad for the meta? Of course strong mons need to be prepared for. That's part of the game.
You know what else everything in the game save a few types has to prepare for? Heatran (basically the steel core). Every type needs to ensure that it can break that core. If you cannot you may as well throw your team in the garbage. Its so centralizing that HP Ground Volcarona is a standard mon on bug. (Your only other option is Hera who gets walled by Skarm and Mega Hera is too slow for the rest of the meta). Its an incredibly stupid set that everyone uses because flash fire Heatran is that centralizing. Wheras that slot could better be used with Giga Drain and roost. Or just some power via bug buzz. Why aren't we looking at Heatran? Because that would be crazy, insane, and pointless. So why are we looking a Mega Sab just because it restricts team building in arguably positive ways. *Points at Arken*.
Why make poison a fraction of a fraction better when that isn't part of the philosophy. If you were worried about that then think of how much ghost usage will drop. You can argue that poison will gain more than ghost will lose. But poison is not the only type that will benefit from this ban. As many users have said flying and other top types were much better before mega sab came along. And they will gain a boost in strength as well. All this seems to point to is just solidifying the positions each type is already in. The top types stay top. The Low types stay low. And the mid types are well... mid. There is no evidence that any shift will happen in the meta, only that it will be "more interesting". More interesting being a very poor argument since what is interesting to one user is not the same for the rest.
There seems to be a lot of favortism towards poison in this discussion and bettering it as a type. I find it very unhealthy to try and ban just to make X type better. Something many users and Council members have said before me. Which is why I cannot fathom why this suspect exists.
Your example of Heatran is invalid for that reason. Heatran does not restrict building for many teams as you claim, and certainly even for the teams that it does restrict, it doesn't do so on the level of Mega Sableye. Consider the likes of Ice, weak to both of Heatran's STAB types, weak to Stealth Rock, which Heatran can set up, and Ice's STAB is 4x weak to Heatran's defensive typing. Does Ice actually prepare for Heatran? The obvious answer to anyone with metagame knowledge is simply no. Heatran is answered by using Ice's traditional Steel checks. Not having Heatran does not allow Ice to remove Pokemon such as Mamoswine or moves such as Earth Power from Kyurem-B. Consider Bug, you claim Volcarona is forced to run HP Ground. Not very many Volcarona run HP Ground, I wonder if you are aware. Further, Volcarona enjoys HP Ground for more than just Heatran, as HP Ground is a reliable way to hit Fire-types in general, which resist Volcarona's STAB moves and Giga Drain, the common coverage move. The likes of Torkoal, Volcanion, and Infernape are all more reliably hit with HP Ground than any of Volcarona's other moves. This is why your example is completely invalid. Mega Sableye needs to be checked by Toxic Mega Ampharos, which does nothing else for Electric. It needs to be checked by Rivalry + Poison Fang + Dragon Tail Nidoqueen, which does nothing else for Poison. These are not anything like HP Ground Volcarona. I hope this is clear to you.
We are not looking at Mega Sableye just because it restricts team building, it's wholly uncompetitive. Many teams also rely on luck to beat Mega Sableye. Since when is luck a competitive part of Pokemon? Pokemon seeks to remove luck as much as possible while keeping the spirit of the game. When your only chance to beat Mega Sableye is a 30%, you have an unreliable answer. When Mega Sableye vs Mega Sableye happens and it's a race to see who gets the first critical hit, that's not competitive.
It's not about Poison. Poison is an example of why Mega Sableye is overcentralizing. It happens to be an exceptional example, being a great type that is held back by Mega Sableye. It also carries what might be the most blatantly excessively specific check as well. That's why there has been a focus on Poison. Most people here probably don't have a bias for or against Poison, but we are using it to explain and show why Mega Sableye is a problem for the metagame. For the same reason, there has been a lot of discussion about Electric.
I read that you said, that the top types did better before Mega Sableye. Flying does not care about Mega Sableye. It carries Mega Gyarados and Mega Charizard Y anyway, both of which will defeat Mega Sableye with little effort. Further, Landorus is a common feature on Flying, which also defeats Mega Sableye. Mega Sableye also makes Mega Medicham a far worse Mega Evolution for Psychic, as Mega Sableye hard walls it. Mega Houndoom, Mega Tyranitar, and Mega Sharpedo are far more threatening against Fairy. Instead, the types that lose to Mega Sableye are the lower types. Electric, Grass, Rock, etc. In fact, you have it completely backwards. The weaker types have much to benefit from seeing Mega Sableye banned, while the best types would rather not see it go at all, as it is benefiting almost all of them.
Feel free to read the post I wrote above, which says pretty much all of this and more.
I absolutely agree that it's unhealthy to try and ban just to make X type better. It's a good thing we aren't doing that, isn't it? We're trying to ban an unhealthy, overcentralizing threat for the sake of the tier, not for any specific type.