I would love to hear some of the councilmembers' thoughts on Escavalier (as well as the rest of the NU community -- feel free to chime in!).

To me, Snorlax seems pretty busted. 110 Attack and amazing coverage means that offensive sets like Choice Band can KO pretty much all the tier's normal resists while still having enough bulk to avoid KOs from anything but Close Combat (which could be avoided with Chople Berry). CurseLax is incredible, setting up on like half the tier while getting enough bulk to avoid pretty much any revenge-killing attempts, forcing teams that want to reliably beat it to get the Trick turn correct or fit Taunt / Haze / Clear Smog on their team somewhere (despite very few NU mons frequently running those moves). IDef Cofag, which I thought could stop it, loses to Darkest Lariat on CurseLax, a viable option; SD CC Escavalier can even be handled with Heat Crash on CurseLax. Stat-wise, it's pretty clearly absurd, having about twice as much bulk as anything else in the tier. This mon definitely seems like it deserves a ban.
I feel that Escavalier is a less clear case.

Escav gets plenty of opportunities to come into battle due to its great bulk and an incredibly useful Steel typing. Once it gets in, it can choose from Iron Head, Megahorn, Knock Off, CC, and Drill Run, hitting most of the tier hard off of its 135 Attack, and that's even before considering a potential CB or SD boosting its damage output.
However, looking over my pre-shifts teams many of them would be able to wall it or threaten it out.

Weezing isn't hit hard by anything other than a CB Iron Head. Although Weezing is easy to chip, Escav's low speed means that it has to predict the switch and Iron Head or it will be forced out by a potential Wisp or Flamethrower.

Physically defensive Poliwrath, which I have used a few times (largely for Sneasel), is also a great Escav answer, avoiding the 2HKO from any of CB Escav's moves and being able to heal up with Drain Punch / RestTalk.

Colbur Berry Jellicent can switch into any of CB's attacks and threaten it out with a burn, even having the added benefit of Taunt for RestTalk Escav sets.

the blanket check itself, Mudsdale, can do well against any CB attack but Megahorn, although it would get pretty severely chipped in the process which can compromise its ability to handle the many other Pokemon it is expected to check; CB Iron Head does 42-49 and Mudsdale barely 2HKOs back with Rocks up.

LOL OK hear me out. Yes, they are OHKOed by CC / Drill Run and take a ridiculous amount of damage from even its STAB attacks (252+ Atk Choice Band Escavalier Megahorn vs. 0 HP / 0 Def Ninetales: 210-247 (73.1 - 86%) -- guaranteed 2HKO). However, U-turn on Whimsi and Ribombee means that with proper prediction you can get them in safely to threaten it out. Being a one-time switch in isn't terrible for very offensive teams, either, since Escavalier is bulky but generally only wants to switch in to stomach resisted hits (rather than neutral ones).
These Pokemon can all handle CB to some extent; although Escavalier has
a way to do big damage to most of them, it becomes very reliant on prediction when it is slower than pretty much everything that switches into it (of the above, max speed Escav is outsped by all but uninvested Mudsdale).
CB and other sets like AV, 4 attacks, and SD+3 attacks can also generally be held at bay by burns, which completely screw it over.
But ... Escavalier can run RestTalk + 1 attack + SD to have defensive utility all game long and break through pretty much any balance team's core, since very few Pokemon can threaten a 2HKO on a defensively invested Escavalier. With Rest, it doesn't care about Wisp.
This versatility might make it too much to handle defensively, so I would understand a ban on those grounds.
On the other hand, Escavalier would contribute a lot to the tier. It would provide the tier with a reliable defensive Steel-type, which would give us another way to handle major threats like Specs Ribombee, Duraludon, and Vanilluxe. I don't depend on the philosophy of "broken shouldn't check broken" here, since we don't
need Escavalier to check them (for example, Sandslash-Alola handles them all except for a Duraludon body press, and Duraludon could be handled by a teammate like Gastrodon). However, it does give us a more reliable way to do so. It also just gives us a new option against them, which would be good because I find myself repeating a few defensive cores just because of how few Steel-types, Fairy resists, etc. we have.
If allowed in the tier, it would undoubtedly become a top option, ending up on tons of teams due to its ability to check so many threats and then do lots of damage off of the free turns given by its typing and bulk. I think there are ways to handle it using Pokemon that were viable and common before the drops. It would definitely be centralizing due to how useful it is, but I'm not sure whether it is broken -- and it does provide useful things for the tier!
I would love to hear what other people think about it. Thanks so much for reading all this