So, hearing how close the Aegislash vote is and seeing how many people are still against banning it I'd figure I'd make a last stand for the pro-ban side and see if I can sway any more opinions.
Aegislash is, in my opinion, broken. It has unmatched versatility, a stat spread pretty much unheard of, can do pretty much whatever it wants to do and has all the right moves to do so. On top of that there's King's Shield which is probably one of the main things that generated so much "hate" towards Aegislash. But this isn't about hate or any vendetta or "Aegislash is so annoying ban plz" from the pro-ban side (at least not from the people I talked to); this is our attempt at making the metagame better and more enjoyable and getting something broken out of the tier.
On top of being blessed with incredible stats, incredible typing (you can say all you want about how it has 4 big weaknesses, it has way more resistances not to mention three immunities to make up for that and the raw stats to pretty much shrug off every neutral attack) and all the right tools it needs to do its job, Aegislash hinders the development of the metagame. It sounds like an extremely good Pokemon and, even when you take its versatility into account, it isn't necessarily broken. However, what pushes Aegislash over the edge for the edge for me is how it prevents the metagame from developing. And I'm not talking about any of those other arguments about people wanting to use Reuniclus or Hawlucha and Aegislash making them worse, I'm talking about development in a broader sense, one that defines the whole future of XY OU. I'm talking about Aegislash taking the metagame into its grasp by being the most controlling, most pivotal and one of the most powerful and versatile threats in the metagame and thus hindering future suspects that might potentially be broken from getting suspected by giving the false illusion that these Pokemon are good for the metagame. I'm pretty sure everyone agrees that the metagame, in its current state, is not desirable. If you disagree, then fine with me, but I and many other people think it is not. People are afraid that the banning of Aegislash will drive Pokemon such as Mega Medicham, Mega Gardevoir and Mega Heracross to the front and thus invalidate any and all stall teams. While that is not only irrelevant to whether or not Aegislash is broken, it is also a completely baseless assumption and will probably proven to be false in due time. Between Stall with Aegislash being almost non existant in the first place (KratosMana being one of the few exceptions of a stall player who used an Aegislash against a team with Heracross and had it work out; had the Heracross carried Earthquake the game would have been over at that point as well), it's also a terrible attempt at justifying something like Aegislash in the tier. Yes, Aegislash does stop them pretty reliably, but if that Medicham or that Gardevoir really wants to get past you then they will, whether it's through coverage moves or just plain team support. And I'm not talking about ridiculously overspecific team support just concentrated on Aegislash here, I'm talking about Life Orb Thundurus chipping away at your Aegislash with Thunderbolt because nothing else wants to deal with it thus paving the way for any of these sweepers to do work. Aegislash's absence not only doesn't make these Pokemon significantly more common (come on, 2 weeks of suspect laddering aren't enough to tell whether something has become increasingly more common, the metagame will settle down eventually. Not to mention that Medicham/Heracross/Gardevoir have been on the rise by themselves recently as they are renowned as the most effective Pokemon when trying to handle stall; Aegislash's absence did not influence them to a great deal), but Stall teams always has trouble preparing for those Pokemon either way. There are very few Pokemon that can even hope to stand up to these three and Aegislash doesn't really change that as it, like I said before, doesn't even influence their usage by a great deal.
Now, for the real reason why I think Aegislash is broken. While stuff such as its stats, versatility, King's Shield etc etc make it a ridiculously good Pokemon, that's not outright enough to push it to Uber. However, Aegislash by itself impacts the future of the metagame negatively in a very severe way. With Aegislash around, there really isn't much of a case you can make for anything else getting banned. While Mega Mawile and Charizard X might get banned, we will still be stuck in almost the same metagame as we are now, and that is all because Aegislash's presence prevents Pokemon such as Thundurus from being suspected and possibly deemed broken (I'm not outright saying Thundurus is broken here but, fact is, once the metagame settles down and people realize that MGard/MHera/MMedi are only marginally better than they have been before, it will be the same as it is now: an undesirable state). With Aegislash gone, Pokemon that deserve to be suspected but don't have a chance in hell of getting suspected with Aegislash around (let's face it, a metagame with Aegislash around but without Thundurus around would be terrible; no one wants to lock themselves into Stone Edge with Scarf Terrakion to kill Mega Charizard X and give Aegislash a free turn in the process. Thundurus is the catch-all stop for sweepers and, with Aegislash around, thats the one most people will elect to use and there's no way you could make a case for it getting banned). So what it all boils down to if Aegislash isn't getting banned is that we will be stuck in the same indefinite state of this very same metagame minus a few Pokemon maybe. Like I said before, I, and many other people, think that this metagame is in no way in a desirable state. If you disagree, then feel free to vote Do Not Ban on Aegislash. But the point is that, to become a better metagame, we need to start somewhere. This somewhere has to be the root of all evil, the one thing holding back all the future suspects and the future of XY OU. Aegislash, although it seemingly "balances" the metagame just clouds everything with the illusion of there being balance but, at the end, we will be stuck with this same, undesirable metagame. If you want change, if you truly want to make XY OU a better metagame, then I urge you to vote Ban on Aegislash. Again, this is not an outcry because we think Aegislash is annoying or "restricts versatility", it is quite the opposite. We want to make a better metagame and believe that, with Aegislash around, this will not be possible.
We believe that Aegislash and its effect on the metagame is rotten to the core.
This is, in my name and all the other pro-ban people, a last desperate outcry to rid this tier of Aegislash, the core of all bad holding the metagame down.