I want to put my opinion on the suspects out there, but I want to talk about this first because it's very important: I feel very uneasy about quickbanning
any of the Pokemon here. It's not because they aren't broken or because I don't trust the council to make good decisions. To frame my point, I'd like to refer to the Pokemon we have quickbanned in the past. They are Blaziken/Mega Blaziken and Mega Kangaskhan from XY, Mega Salamence from ORAS, and Power Construct (Zygarde-Complete) from SM. Anyone who played the OU tier with these Pokemon can attest to the fact that they were clearly in another realm, particularly in the cases of Zygarde-C and Mega Mence but true in the other cases as well. These Pokemon were very blatantly broken, creating win situations on their own while being overwhelming in such a way that is nearly impossible to deal with. Although some of these Pokemon may perhaps be banworthy, the level we're talking about is clearly different. The main Pokemon I want to discuss is Aegislash because it's clearly the top candidate being mentioned. I'd talk about Pheromosa too, but there's already pretty much an assurance that Pheromosa won't be quickbanned
directly from TDK (while Aegislash is in the tier, that is). Bear in mind that I'm trying to be as objective as possible when describing flaws, so don't take what I'm saying the wrong way -
I want to ban Aegi too, but I think it should be done the right way.
is slow and definitely beatable. Offense can run certain Pokemon that can OHKO it or severely cripple it regardless, and plenty of Pokemon have coverage options for it whether they would run them normally or not. Furthermore, it has been established that there is not exactly a shortage of defensive checks for balance and stall teams to use, especially with the addition of Celesteela. The primary argument for banning Aegislash is and always has been that it restricts the metagame, not whether it is balanced; although there are side arguments for that, they are much less strong. Although some may argue that these impacts are obvious, ultimately metagame impact is a subjective process that comes down to the opinions of individuals and changes
as the metagame progresses. I want to emphasize this last point because I feel that at the five-day mark of this metagame, it just feels inappropriate to judge what the metagame is going to look like when even the 'good teams' of the metagame lose to Pokemon that should be good, and there are plenty of good Pokemon that aren't as common as they should be due to new Pokemon fever. You may be able to theorize that these shifts may make no difference with regard to Aegislash, but I think we'd be seriously remiss if Aegislash wasn't even given a suspect period.
This is all particularly in lieu of the intense vitriol surrounding the Pokemon, with many people assuming it will leave the tier at any moment now. It'd probably still get banned if we have a suspect test on it soon (which I support), but I think that the window that a suspect test would give for the metagame to calm down slightly and intense emotions to relieve themselves a bit cannot be construed as anything other than healthy to a reasonable banning process. All in all, I think there are reasonable arguments to let Aegislash sit through a suspect test, even despite that, yes, we've done it twice before.
Perhaps it is the precedent we want to set, but I don't like it. The reason we have a suspect process is to subjectively deal with and decide the fate of anything that is deemed potentially broken, unhealthy, or uncompetitive. Uncompetitive tends to be its own category and the first two can go hand-in-hand, but not necessarily. All of the Pokemon that have been quickbanned in the past check off the first two boxes resoundingly. Aegislash debatably (clearly, as this thread would illustrate) checks off the box of unhealthy, which is the reason people want to ban it; even if it is truly broken, it's not by much. For the Pokemon quickbanned in the past, I don't even have to ask myself these questions let alone debate to find an answer. To be honest, quickbanning Aegislash seems more like the option people want because they want to get rid of Aegislash as soon as possible. I truly understand the sentiment, being one of the main proponents for banning this Pokemon in XY and someone who actively dislikes its presence in the tier now. However, I'd rather deal with Aegislash for another couple weeks than set a dangerous precedent in terms of the criteria for a quickban. In the case of a Pokemon as controversial as Aegislash, the community should make the decision.