Last I checked. 2 checks ain't shit.
People don't use Quagsire anyway and Clefable usage isn't very high at all period.
Must I provide evidence of Wailreins brokeness? Is it not obvious? Here-
1) Stallrein variant of Wailrein when used in conjuncture with everlasting Hail effect is a viable stratagy in the overpowered Over-Used Metagame. Stallrein is UU yet can survive and even, sweep in OU conditions.
2) Using a Hail team got... ME to 1651 Cre in the UU ladder after the reformation and before any bans to BL took place. Me, for Christ sake.
3) It is obvious that Wailrein is fully capable of sweeping a significant portion of the UU metagame. This has been proven countless times. Whole teams can be swept by Wailrein using his famous Stallrein set in tandem with his generous base status and ample ability to replenish HP and protecting itself from attack. Laying down Toxic Spikes and bringing in Stallrein when an opportunity presents itself can end whole teams. Fact.
Wailrein with Toxic or Tspikes layed down will eventually kill Quagsire. Encore will force a switch. Big deal. Quagsire could encore Blizzard cuz Wailrein will be faster then Quagsire 90% of the time. Clefable is hands down the best counter to Stallrein. And that would require Clefable to go out of it's way to be customized to counter Stallrein. When it could use a possibley more effective set that would yield a less then favorable result when fighting Stallrein in Hail.
Look, I was just throwing out the obvious, it wasn't supposed to be an entire dissertation on stallrein, but if you really want one, here:
Clefable's Encore set is the best there is and can be extremely varied. It can be used on the "Blissey with Weight Loss" set, the actual Encore set, the Toxic Orb set, or (although not as well) the Calm Mind set without much negative effect. Being completely immune to toxic and able to sponge Blizzards all day means Walrein can't do anything.
Quagsire can safely switch in to any Walrein running Surf >> Blizzard and Encore any one of his moves. Again, best used in conjunction with Rest or Aromatherapy support.
Any sub or sleep talk sweeper that can take a Blizzard/Surf (Sub Punch Hariyama, any Sub CMer) can set up on Walrein. Sub prevents toxic, in the case of SubCMers, after 1-2 CMs the sub quits breaking, Walrein runs out of Blizzards, sweeps. Crotomb also deserves a mention here because everyone and their mom is running him. The hail damage is mitigated because all sub CMers carry Leftovers.
Taking away Hail destroys Stallrein. Any Sunny Day, Rain Dance, or Sandstorm user will make him worthless. Obviously it requires taking out Snover, but due to his pathetic stats as a NFE, it's rather easy. Using snover on your team means you lose valuble coverage and Early-game momentum thanks to having a pretty useless lead. All of the BL conditions specify "Common Battle conditions" which hail is not.
Now lets move on to the most obvious one: Taunt. Any taunt user can switch in on any move not named Toxic, then proceed to Taunt stallrein, making him useless. Argubly the best at this would be a Taunt/SD/EQ/NS Drapion. He can switch in to any move (immune to poison), Taunt, SD on the switch, and sweep.
Stallrein doesn't have a ton of safe switch ins. Status destroys stallrein, one paralysis means the set fails, poison means the set fails, sleep means the set fails, so he can't switch in on status attacks that most walls carry, not to mention Trick, plus with people running large power sweepers like Mismagius with Tbolt (SubCM also gets SE HP Fighting), Roserade, Specstile, etc that have Super Effective moves, Stallrein risks being killed on the switch.
+2 Absol Superpower vs Stallrein set: (168.70% - 198.84%)
Mixkin (76 Atk) Superpower vs Stallrein: (95.65% - 113.04%)
252 SpA Sceptile (with no item) Leaf Storm vs Stallrein: (125.22% - 147.83%)
LO Roserade Leaf Storm vs Stallrein: (183.19% - 216.23%)
Mismagius (with Leftovers) T-bolt vs Stallrein: (56.81% - 67.25%) (always 2HKO)
Rotom (with Leftovers) T-bolt vs Stallrein: (78.84% - 93.91%) (always 2HKO)
Specs Espeon Psychic vs Stallrein: (76.52% - 90.43%) (always 2HKO).
0 Atk Hitmontop CC vs Stallrein: (50.43% - 59.71%) (83% chance to 2HKO with Leftovers 100% with SR).
Scarfmonlee CC vs Stallrein: (92.17% - 108.41%)
All of the above 1-2HKO Stallrein and are extremely common sweepers. He cannot come in against any of the above and a lot more, I'm just tired and don't want to run the calcs for every UU sweeper.
He can really only switch in on walls, and some walls like Registeel can literally out-stall stallrein (Especially the Curse/Sleep talk set). Any wall immune to toxic (or already statused) and resistant to surf/Blizzard can actually PP stall him until protect is down or he runs out of his offensive move, thus becoming setup fodder.
If you let him set up on you, that's your fault in strategy. If your team has no way through one or more pokes to counter an obvious strategy like this, that's your fault in teambuilding. Does this get my point across?
how to beat stall: dont be a dumbass. i have beaten a very good stall player using one of the best uu stall teams atm, and i used a sunny day team. the point of that isnt to brag (heh), but you can beat stall with a team that isnt anti-stall. stall players tend to play cautiously, therefore you play smartly, but recklessly. if you have your roserade out against a slowbro, they aren't staying in. make the double switch to something that can beat the opposing chansey. you must also switch it up. you cant switch roserade out of slowbro every time...your opponent will say "hmm, why dont i keep slowbro in and ohko his blaziken!". try to keep a good mix of doing the obvious play and predicting and doing the double switch. i cant stress this enough, to beat stall you have to predict. in my example of a match, i distinctly remember rock sliding a hitmontop instead of power whipping him, an example that you must make the obvious moves at times. in my battle example, i also only had one pokemon that could beat chansey.
it helps to have something that cam simply manhandle its way through stall, like blaziken. definitely not required, but helped. you can't always take out their chansey by bringing in your absol and not going back to your slowbro...sometimes you gotta power your way through stall! i hope this post explained that your team doesnt have to be 6 mixed sweepers with extremely high attack and special attack scores with amazing movepools! you can use common sense!
I fully admit my team is weak to stall, but not wanting to use Blaziken (or stall, I have these perceptions of overpoweredness bound into me, even though something isn't objectively overpowered I still don't want to use it) means I really have no chance. These "double switches" and stuff only work to the advantage of the stall team. Stall teams tend to carry more residual damage, thus your constant switching is undermining your offense. Furthermore, they can simply switch with you. You double switch and bring an Absol in on their Chansey, they bring in Spiritomb or Altaria or Steelix or Hitmontop or something to take the Superpower and heal up while you swap back out, threaten you, or cripple you with status.
Spiritomb, I think, is the root of a lot of problems. I really wanted to nominate it for the defensive characteristic, but being newer and also not seeing it nominated anywhere else discouraged me. Really, a Spiritomb with Rest/WoW/CM/DP and Aromatherapy/Heal Bell support is unbreakable under most circumstances. 3 immunities, Pressure, and large defensive stats mean barely anything can actually touch it, much less KO it. With Bold and Def EVs complemented by CM boosts to SpD, there's really nothing that can consistently take it down. It requires either specialized (ie Foresight Hitmontop) or Ridiculously powerful (something +2 or more) attacks to take down, while preventing many of them from achieving that.