I'm a bit late to the party, but I do bring some testing results from a few custom NU games I've had with friends, so that's something at least. They're not the be-all end all, but they have at least brought a few things to light for me.
As the thread discussed earlier, Sawk just became an even bigger threat. It was already the best wallbreaker in the tier with its flagship CB set with fantastic offensive power, typing and abilities. With the Knock Off buff, a lot of its would-be counters don't really do their job anymore. Ghost and Psychic-types get smacked with with ~100 power dark move and lose their item on top of it. Musharna and Misdreavus barely counter it, and Tangela has a much more difficult time too. Alomomola can take a hit, but it's still 2HKO'd by CC. As much as I love Sawk, I think it has to be suspected sooner or later. Any team with a solid momentum core can get Sawk in and out when it needs to show up and then your press the "something dies" button.
On the topic of fighting types, I think there are three that should certainly be discussed as potential new tier members:
1) Hitmonchan. Hitmonchan is... disappointing to be honest. It's not particularly strong and it's walled by all of Sawk's old counters. It doesn't really have the speed or power for an effective Band set like Sawk, it doesn't have the speed for a Scarf set like Primeape, and its uninvested physical defence is pretty poor. It does have one or two merits to make it useable, though. Firstly, Rapid Spin gives it team support opportunities. Unfortunately, running Rapid Spin tends to make Hitmonchan very Ghost weak (especially to Misdreavus). Secondly, it's absolutely perfect for an Assault Vest set. Thirdly, he has some ok coverage with the elemental punches and also packs priority in Mach/Bullet Punch. But in general, he's been really lacklustre in testing. He's outclassed by most fighting-types in the tier and doesn't carry anything meta breaking in his arsenal. I think he should be brought down to be honest.
2) Toxicroak. I don't know why it was OU when it was only good there for an ability nonexistent in lower tiers. Toxicroak is awful without rain. It has two nice abilities and strong priority, but that's all there is to it. All of his powerful coverage is inaccurate and he's super weak to ghost and psychic-types. He might be able to fill Sawk's void with banded Gunk Shot, but I have my doubts. Someone might rebuke me for suggesting such a drastic tier drop, but eh.
3) Pangoro. I know he's not allowed for discussion, so I won't discuss him. Just throwing his name out there.
Other Pokemon to be considered are Cryogonal and Quagsire. Quagsire is just flat out terrible in my opinion. The only thing he has over Seismitoad is Recover and a gimmicky ability.
Cryogonal's a bit sketchier, but I think it should be discussed. Cryogonal is a fantastic offensive Rapid Spinner with fantastic STAB coverage courtesy of Ice Beam and Freeze-Dry, making it pretty scary to face. His uninvested special bulk is decent too, meaning he can 2HKO something by taking a hit and then recovering off the battle damage. Unfortunately, that's where it ends for the angry snowflake. Basically everything that counters Jynx counters Cryogonal with even greater ease. To be honest, it's even easier to handle than Jynx. Jynx is much more powerful, has dual STAB for coverage, a much better movepool, an ability that's more relevant and it has Lovely Kiss so that its counters stop really being counters. Things like Grumpig, Hitmonchan, Metang and Miltank which all counter Cryogonal don't do very much to Jynx thanks to that obnoxious sleep move.
Which brings me on to discuss Jynx, actually. I think it should probably be suspected again. If it didn't have Lovely Kiss I wouldn't even be discussing it, but it does. It's in a similar boat to Sawk in some respects in that nothing really counters it. Special walls that want to switch in to it can't. They just get put to sleep, Jynx sets up in their face, and then it kills half their team unless they have a scarfer or anything faster than it (which isn't much, mind you). It takes some seriously risky prediction to handle Jynx and there aren't really many stable counters to it. The only thing that holds Jynx back is the fact that it can never do everything at once. It wants to run dual STAB, Lovely Kiss, Substitute, Nasty Plot and Focus Blast all at once and it can't.
Anyway, that tangent over, if Sawk gets banned, Weezing becomes a pretty reliable physical wall and pairs wonderfully with Probopass.
That's all I have for now.
