This suspect test requires a lot more thought than any of the previous tests done in Gen 6. Aegislash is without a doubt at the top of OU with good reason. Every single team must be prepared and wary of Aegislash in order to be successful, which certainly promotes a ban argument on the basis of "overcentralization". But really, preparing for Aegi is a lot easier than preparing for the likes of Genesect, M-Kangaskan, M-Lucario, M-Gengar, the Deos and Baton Pass. We all know that these pokemon/BP were unhealthy for the meta because they required obscure counters or simply left too much of the game up to chance. Aegislash certainly doesn't boast the power of M-Lucario and M-Kangaskan, nor is it's ability fundamentally damaging to to the metagame (*cough* M-Gengar). Furthermore, Aegi is not overly simple to use, and requires a bit of know-how and prediction in order to get the upper-hand (unlike the Deos). Aegislash has decent checks and counters (it can be beaten by stall, HO and balanced teams) that are commonplace in the OU.
As mentioned, A-slash does require prediction to use and creates 50/50 scenarios as such (mainly due to King's Shield). It should be noted (as it has been in this thread) that while such 50/50 scenarios seem unfair, the reality is that they are player generated results in the case of KS, unlike Swag-Play mechanics. Furthermore, this pokemon needs prediction to play against due to some wicked new sets designed to rock it's counters (e.g. head smash life orb set to beat Mandibuzz; speedy sets to 1HKO Bisharp etc). Aegislash can be massively physical or special, which can result in the instant loss of the opponent's wall if played correctly. But honestly, every single offensive threat in the OU has the capacity to generate these scenarios. E.g. Flare Blitz Char-Y takes out Chansey. Furthermore, every single relevant offensive threat creates 50/50 scenarios. E.g. Choice Specs Keldeo is the opponent who switched in against your Chansey; 3 of your other pokemon cannot take a hydro pump but Chansey can't take a Secret Sword. What do you do? Go. These scenarios are inherent to the game of pokemon.
After careful consideration of these facts, I still don't see this enough to warrant a ban of Aegislash. As a player who has used many Aegi sets (although it is not a member of my main OU team), I have realised that the 50/50 scenarios created by A-slash aren't particularly unfair. A-slash usually causes most harm when players of the opposition attempt to get a swift 1HKO or overpredict in order to get a free set up (e.g. then number of times I've watched set up sweepers fall to Aegislash is incredible). Quite frankly, the lesson of Aegislash is to tread carefully. Many OU pokemon have equally dangerous consequences for over prediction.
For me, the main reason why I don't see Aegislash as banworthy is because my most successful OU team (currently ranked 1850 on PS, which I am happy with although I know there are plenty of better players out there) was built without specific consideration for Aegislash. Naturally, many OU pokemon are capable of at least checking Aegislash and gaining momentum from a switch-in. Consider SDef Amoongus. No, it will not beat a physically orientated Aegislash but will beat any Special variant. Nonetheless, Amoongus can take a physical hit (poorly) from a physically offensive Aegislash, crap it's pants and then run to a more appropriate counter. In fact, many pokemon can take A-slash's hits and many pokemon can KO (how common is earthquake? even Venusaur can run it... viably). Here's a list of pokemon that Aegi doesn't match up favourably against (ones I'd switch out from). Sure, poor prediction might have consequences for some of these, but the reality is that there are several options to get rid of Aegislash without being overrun. Unlike any of the previous suspects, Aegi's checks and counters are not specific to Aegislash.
Landorus (I and T)
Mandibuzz (I know head smash is dangerous, but kudos to anyone smart enough to run that set)
Gliscor
Amoongus (foul play 1HKO's if Aegi attacks, and spore puts it to sleep unless Aegi is sub-toxic)
Diggersby (Aegi needs to predict with sacred sword)
Heatran
M-Charizard (X and Y)
M-Scizor (can actually set up vs Aegi and KO with knock off)
Manaphy (can take a hit, set up, and KO)
Gengar
M-Venusaur (Aegi fears knock off, sleep powder, leech seed and earthquake)
Bisharp
M-Blastoise
Greninja
Excadrill
Garchomp
M-Manectric (someone posted earlier saying M-Manectric isn't relevant in the OU... my advice is to play a high ladder rain team and rethink this opinion)
Talonflame
Tyrannitar
Many of these pokemon are not only fun to use, but viable and effective in the OU metagame. None of these pokemon is used solely to counter Aegislash (i.e. they have MANY other potential roles), so what's the problem? People may want Starmie back in the OU (like me, I still use it), but the game has to evolve at some point. A-slash isn't unhealthy for the meta from my standpoint, but I do completely understand that it may well be banned. I won't be crushed in either case (I actually want to use Starmie lol) but I personally don't feel the need for Aegi to go. Nonetheless, kudos to a wise choice for a suspect test.
^This (for the most part).
I've been reading this thread for a while, and there's several arguments I see on both end of the debate that I'm sick of seeing:
1.
Aegislash doesn't have any counters because he can run a LO set/Balloon/Hidden Power Whatever/Head Smash/any other move/item/set/EV spread: As a stall player, I know quite well that MOST of OU can change its checks/counters dramatically by running a different item, changing even ONE move, running a different item, etc. In fact, the only things I can think of that are only viable with one item are Eviolite mons, Gliscor, and megas with terrible base forms (like Mawile). And the only things viable with only one set are mostly stallmons like Chansey (which can still run variations like toxic vs. twave, or Seismic toss vs. 2 forms of healing). Even things that typically run only one type of set with only one move up for change can still change what it deals with by changing that one move. For example, Rotom W pretty much always runs Hpump/Volt Switch/Will O Wisp. But changing the last move to Trick can cripple a lot of would-be checks/counters (such as Chansey) and give him a technically worse matchup vs others. A lot of things in general can change what checks them simply by investing a bit more speed than usual, or a different item/move. If the ability to run varied movesets/items in and of itself were broken enough to be an argument, we'd probably have to ban the entire tier. And if I switch something in blindly without considering the possibility of them running a lure, there is a high chance that I deserved to lose the match anyway, just as if it were any other Pokemon running a hidden power/alternate move/alternate item, etc.
2.
Aegislash forces teams to run Earthquake, Fire Blast (insert any other move he's weak to here): If you are running an offensive team, and do not have an option to hit Aegislash anywhere on your team, it really just sounds like you're running a crappy team. Even with Aegislash gone on the suspect ladder, I still see plenty of people running Earthquake, Fire Blast, Knock Off, Shadow Ball, etc. simply because those are good moves that hit several relevant threats. An offensive team that doesn't have a Fire move, for example, can often find itself unable to break Mega Scizor. Earthquake hits almost everything in the tier that isn't flying/levitating at least neutrally (only relevant things I can think of that resist and are on the ground are Heracross and Grass types - and not even all of them) and as a result is spammable enough even in suspect ladder to make a flying/levitating poke, balloon, Heracross, or a resisting Grass type pretty much a REQUIREMENT for a good team. Knock off is literally the most spammable move in the tier (most things don't like losing their items, and it has a decent BP for something that has such a nasty side effect). About 90% of the meta does not resist Shadow Ball, making it incredibly spammable as well, and Ghost is a good coverage move for Fairy and Fighting (being unresisted in the tier as a pair). Not to mention, Aegislash will take a lot of damage over the course of the match from unresisted attacks such as Hydro Pump and Tbolt, and gets worn down fast due to lack of reliable recovery. So if you're running offense and can't hit him at least neutrally from multiple teammates, it sounds like you're running a crappy team because you're missing out on hitting lots of OU relevant targets in general. If you are running a stall, and do not have something with one of the attacking types he's weak to, something that can tank hits from most sets (barring weird lure sets), and/or Will o Wisp, again, it sounds like you're running a crappy team.
3.
Aegislash makes (insert poke here) not viable in OU/forces them to run an inferior set: Some of these Pokemon are actually viable, if you run a teammate that can handle Aegislash. Some of these Pokemon are not viable at all anyway, and/or have issues that go above and beyond Aegis's presence such as also losing to Dark types or being partially/fully outclassed by other Pokemon in the tier; and therefore need to fit a team PERFECTLY to see use. I'm not quite sure why someone can't run the set they want to on Pinsir, for example, or just run Gardevoir if they wish, and just run a teammate that handles Aegislash. And if something is literally not viable in Aegis meta, and viable in Aegis-less meta, who cares? The viability of any other Pokemon, in and of itself, is not an argument to ban.
4.
Aegislash keeps (insert poke here) in check, which would otherwise be broken: Just like in point 3, it doesn't matter if something is broken without Aegislash. If something like Gardevoir forces people to run Scizor (assuming that's the only check, which it's not), it is possible to ban that too. The viability of any other Pokemon, in and of itself, is not an argument to not ban. The only issue is that Smogon is generally slow to suspect things that are worth suspecting, but even that is improving and again, not a reason in and of itself.
5.
OMG! I love Suspect Ladder! I'm seeing so much variety and it's harder than regular ladder!: You DO realize that we had just banned 2 Pokemon (Deo D and Deo S), and one playstyle (Baton Pass) in the past few weeks, right? That alone is enough to force most people to (at the very least) make changes on their teams, and in many cases build a whole new team entirely. Suspect ladders are always a lot harder than regular ladders due to the fact that most people playing on them are people with a high enough skill level to make reqs or barely not make them, and most people on regular ladder are running
crap like this, unless you get above 1500ish (which is around the skill level where people reach before they attempt suspect ladder). The fact that people attempting suspect ladder have to build new teams both without the previously banned pokes and without Aegislash in mind means that a lot of people are just simply trying out new things. The metagame WILL settle in a few weeks, whether or not Aegis gets banned anyway.
6.
OMG! I hate Suspect Ladder! I have to change my team: You and everyone else, for the most part. Stall IS still viable there, you just need to make changes to your team to handle the newly popular wallbreakers, or just accept the fact that you WILL lose if your opponent is competent and has one of those Pokemon. I don't see how that's any different from regular ladder higher up, since you already have to change your teams to take into account that the Deos are no longer OU and everyone is trying new stuff out anyway. Boltaway made a post earlier in the thread: in short, if you don't have certain things on your stall, you WILL lose to certain other things that are now more popular; but I don't see that as being any different from before where you would have lost if you didn't take those threats into account when you made your team (except for the increased popularity of, say Medicham).
7.
Aegislash causes 50/50's: I don't see this as any different from anything else carrying protect, having a move that hits your Pokemon in on it, having a move that hits something else on your team, and having a healthy counter to your Pokemon in on it elsewhere on the team, tbh. Aegislash is simply better at causing a lot of the 50/50's because he's a very GOOD Pokemon to use anyway, but pretty much anything can cause 50/50's assuming 2 competent players with competent teams. A lot of these 50/50's are weighted heavily depending on what movesets each is carrying, what each player has left on the rest of the team, predictions based on previous actions, etc. There are a few situations I've seen where it's a true 50/50 (where it literally doesn't matter what was done because there was an equally weighted "winning" and "losing" option for each player, including possibilities of double switches and such), more of which are caused by Aegislash than anything else; But the vast majority of things that seem like 50/50's are weighted, even ones caused by Aegislash. All 50/50's, including true ones and pseudo, are user controlled with very few exceptions (unlike the 50/50 of whether hax is in your favor if you have a Paralyzed poke on something that 2hko's you, but you ohko them back and both are the last thing left, or a speed tie between 2 scarfed Garchomps that are last things left).
The only relevant argument is whether or not the presence of Aegislash in the metagame is broken/centralizing to the point of being uncompetitive. This right here is debatable. With previous suspect tests, most Pokemon were judged as uncompetitive by the vast majority of competitive players. It is, in my opinion, not broken, but undoubtedly centralizing. I'm not sure it's centralizing to a point where we will need to get rid of it yet. It does have several checks that are relevant in the metagame, and several that are not all that popular/relevant but technically check. Also a few things that counter/check each relevant set individually but lose to other sets. Nearly every one of these Pokemon that can check/counter are good for other relevant threats as well in the same way they were for Aegislash, to where they are relevant considerations in Aegis-less meta. No one is forced to run something like Own Tempo Numel to counter Aegislash but lose to other threats, however Aegislash *is* good to a point where if it fits a team there is no reason not to run it.