Its a bit hard to give definitive thoughts in a few hours, but doubly so because we're waiting on the tera suspect to get a clearer idea of what the month is going to look like, so some early thoughts that could have nothing to do with the tier in a few days:
- Naclstack is ridiculous. Like sure it has zero standard offensive output, and its heavily item reliant, and 8 pp recover is a bit mid. But those attributes overall are just disgusting, ghost resist makes it so resilient to the typing even if you tera into ghost, and makes it an absurdly good spin blocker because Avalugg just doesn't hit it. Then you have salt cure, an extremely silly move, and you cannot get status'd, also very silly. Also abuse the lack of knock off in general, the opposite issues with having fewer pp in recovery, and well the mon imo is almost essential if you start moving away from offence (tera options: ghost is top, obviously, but fairy also has legit potential considering the big broken in the tier and the dark resist is very nice. Water is also interesting due to good resists, particularly vs Weavile / Cetitan, but it has a less interesting profile than Garganacl gets in OU imo)
- Haxorus is dummy silly, to the surprise of absolutely nobody, and is most likely the one thing I cannot wait to get out. The influx of Avalugg is largely caused by this, and even then Avalugg isn't THAT amazing vs it because of tera and CC being really awkward to switch into. Haxorus has multiple sets that are just superb, and if you don't have a Avalugg or a Slowbro or a faster than +1 scarfer that can reliably kill it, chances are you will lose. (Tera options: more versatile, imo poison is extremely solid because of the fairy weakness and Pjab becoming stronger than a Pjab has any right to be, but ghost has potential vs Slowbro / Palossand / gets another DD vs Press Avalugg. Dragon for CB seems good, as does Fighting, Dark stops Sableye fully, look the mon is broken what do you want me to do)
- Bombirdier is interesting, I swear! Look find me another knocker with rocks that has actually nice resists and maybe ill stop talking about it. Stone Edge clips Avalugg with Rocky Payload as well, but realistically you are just gonna knock that and come back later. Its speed tier is quite nice, above Medicham and Gardevoir - returning friends of the show - is super nice, and also has uturn. Its significantly weaker than Honchkrow, but comes with plenty of interesting things, don't sleep! (Tera options: please don't)
- Our steels are TERRIBLE, so you are most likely gonna keep that spot for tera, however... I think Revavroom is plenty interesting. Its a funny pivot, but the typing is super awkward defensively as it doesn't do a great job of checking specs Garde, which is quite annoying for a steel. No rocks is also mid, but... Toxic Spikes are pretty epic. Steels in general being mid also makes shift gear surprisingly potent, and I have had decent success with a bulky setup that also carries tspikes, as its really annoying to palossand and slowbro without their boots (tera option: steel is actually not bad, makes Iron Head strong and benefits filter quite a bit. However, if you do that and have recovery, make it leftovers and not black sludge unlike.... yeah ok I did it)
- There's a few returning faces from SM which is super funny, Honchkrow has been talked about. Florges is also back and seems nice but I also think its super exploitable because its a bad Haxorus counter in this economy. Bruxish is very fun now that it has Wave Crash, its way less exploitable by dark types now that it just steamrolls past Umbreon. CB seems like its the set for me there, as well aswater tera, so jet can pickup easier kos if you need them. Salazzle I have not seen at all, which is a bit of a shame, I think its on paper very good but like being walled by Naclstack was not it tonight. It does have knock though, and got tspikes, something like np + tera also could have potential. Gardevoir... how do you counter that? Thank frick its slow. Lycanroc-Dusk, imo, is the other mon I'm looking at. Amazing power potential, great vs offence as well, and tera options make the few counters to it a bit of a joke ( 252 Atk Life Orb Tough Claws Tera Dark Lycanroc-Dusk Crunch vs. 252 HP / 252+ Def Slowbro: 281-330 (71.3 - 83.7%) -- guaranteed 2HKO ). I'm not sure its viable to stay here long term, but we will see.
- Speaking of Slowbro, oh so essential and oh so close to not doing it. Weird mon, I think good things of Future Sight + Yawn + Regen, but its a lot to commit to in your moveslots. Kinda wants body press, kinda wants surf, not enough recovery. But not having it on balance teams seems so ew.
- Weavile and Blissey, the how the frick did you get here category. Weavile seems very good idc what people are saying. Its way faster and stronger than the typical RU mon, and sure it lost Knock but its basically BW UU Weavile with a better ice stab that can also change its typing, and Weavile is broken in BW UU, I'm really not convinced of its downfall yet. Blissey however lost significant assets and is immensely passive, sure it still has twave but a block of salt in front of it makes it run, and even twave is not stopping it from losing to qd mons or cm mons, it needs CM, but still loses to taunt then, but without CM how does it beat those mons. Awkward spot for it, though its immensely fat and a massive boon to stall or bulkier balances. Oh, we finally got Krook. It sucks LOL ok no but like this mon has next to no niche except being a decently strong scarfer than can outspeed something like Lilligant or Heracross or Venomoth but not Haxorus so at that point you're wondering why you are using that set, and as a dark breaker its just not it compared to Honchkrow or the goat Bombirdier (might be capping here) That being said, it is a fast ground, and it does cover SD Lycanroc nicely with scarf. There's worse, there's just.... a lot more impressive mons.
- RU always gets way too many fighters, this did not change. Medicham seems good but its a bit slow, yes I know trailblaze but ur not getting kills with trailblaze, and tera can punish a fighting click hella bad. Also has the same medicham problem of having zero defensive utility. Heracross seems more promising with it actually, given the better resists and speed making Guts at + 1 a higher threat. I want to see more of Flamigo Passimian and Toxicroak, all of which I think are interesting. And Tauros-Fire is fun defensively but being absolutely owned by Slowbro is so tragic. (Also Crabominable in trick room seems crazy as well just saying)
- Finally (?), Venomoth... I hate that mon, I think its gonna inevitably go, but its surprisingly not THAT silly yet. Check back in three days where I ask for an immediate ban. But really, Naclstack completely stuffing it is really big, as is the general demand for more speed because of all the insane breakers we got. Nice priority users also make its fairly fraily physical side pop out more, but really the fact that we got defensive options that don't care at all about sleep is a game changer for it, imo.