Some quick stuff I want to talk about before the tournament starts.
While I like the aspect and the application of Terastallizing A LOT, I think in the long term it'll be unhealthy just because I see abusers taking more advantage of it and the counterplay is not as clear and the mix-ups are too absurd. Another thing I see is the restriction it'll put on teams, and sets. Something like you're forced to use Encore and Foul Play in order to stop them, though I'm unsure if it's a fully unhealthy thing. I'm all okay if it's banned, but I do want to see its development for why it's broken. It's not as clear cutter as NFE and is much bulkier compared to other tiers so it's already more doable than other tiers in my eyes.
With that said, there are some broken aspects I've been building around it which could be problematic. A combination of Sub + Tera can really, really turn against its supposed checks, and IMO it's stupid. It's like you're combining reflect type that resists the coverage + sub at the same time, absurdly dumb. If you want an example of a pokemon right now...?
Fraxure @ Eviolite
Ability: Mold Breaker
Tera Type: Steel
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Swords Dance
- Stomping Tantrum
- Poison Jab
- Substitute
or
Fraxure @ Eviolite
Ability: Mold Breaker
Tera Type: Fire
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature / Adamant Nature
- Dragon Dance
- Outrage / Dragon Claw
- Tera Blast
- Substitute
Fraxure's weakness is usually the typing being defensively exploitable. But with Tera+Sub, you could take advantage of mons that have only one attacking move, and setting up like that means you'll usually force one or two kills. The flaw is losing 25% and once your type is revealed, the opponent can react toward it. But this is still a very powerful tool, and if used in endgame you'll get one hell of a 6-0 reversal. I definitely think there are more, but it's more leaned to those who can set up though.
Now on Fraxure itself, I think the DD set is better than the SD set, but SD sets do have their fair advantages where it's able to tear apart stall/defensive teams better. The meta isn't as fast-paced enough to stop Fraxure, so it's easier to abuse SD because of it. Fraxure's most preferred tera-type are those that resist stabs, specifically from Sneasel and somewhat Pawn. But you should also take advantage of its powerful base attack, so it really depends. Water, Steel, and Fairy are both good defensively, but Fire gives Fraxure such dangerous coverage that beats most of the checks tbh. Fraxure is just one of the scariest mons to watch out for, and Tera makes this mon even more unpredictable.
Now for other meta talks, I'm gonna tackle a bit on
I don't think it's impossible to stop and I feel like the set off Iron Defense + Body Press is not hard to react to if you have the right sets, which is very possible with something like Encore existing. I do think the counterplay against it is weirdly enough not as fun or can be really one-sided. There are not enough offensive in order to stop it, so you're kinda forced to play the extremely lame game which is restricting in itself. Combine with Tera, this would end up being a bit more inconsistent. And while there are defensive ways to stop it, they're also kinda restricted by like encore or some specific techs in order to deal with it. So the tl;dr is Naclstack is possible to stop, but the number of ways to do it is awkward and a bit limited in my taste. For its place when you want to pull it out, it's probably best as an endgame setup, but you can switch it in on mons you can easily counter and annoy the next mons with salt cure. That move is really insane for chipping 1/4th of water/steel mons.
Also some personal comments towards some people, Naclstack is not a Misdreavus check or does well against it. It literally gets screwed by the sub set or another coverage move lol.
This pokemon is so much dumber after the Primeape/Bisharp bans. Choice Band Beatup/Tera Blast + Tera does hit like a bastard, but the SD set is infinitely more annoying to face. Specifically, Tera Ground Sneasel goes through its most common checks against like Crocalor, Tinkatuff, Pawniard, and Carkol. You can stop it, but that coverage is not easy to cover at all, so you'll need all of the defense in order to stop it since outspeeding it is usually not a thing. That pokemon is faster than all mons bar Drakloak and Voltorb when it's Adamant lol. Unsure about bannable, but I'm keeping a good eye on it.
This pokemon is actually insane after the ban, as Bisharp/Primeape held it back. Yet I don't see many people talk about it or use it despite being known for its problematic strengths back in older NFE gens. Well, can be a number of reasons unrelated to people not using it, but looking at the perspective of this pokemon. It's actually not that difficult to check it, especially when it can't freely knock anymore lol. Yes, it can still tear apart teams, but there are some mons keeping an eye on it such as Quaxwell, Crocalor, Carkol, Gabite, etc. Losing Knock Off and the meta being less Knock Off and Defog spammable did definitely affect it. Do not overestimate it though, this thing is dangerous but it's much easier to switch in and deny progression from it.
If I really want to talk about a pokemon that's the closest thing the council should look at it, it's 100% Misdreavus. This pokemon literally has no consistent checks with the combination of Tera. It's also in a very privileged speed tier, but the worst part is that it makes the hazard absurd in a combination with the above. Literally beats every hazard removal/blocker with simply Shadow Ball + Thunderbolt, and none of them outspeeds it,,,,,
NFE Moment when Fletchinder, when it's base 84 speed and Misdreavus is just at base 85 speed lol... If I wanted to see Tera gone, it would probably be this, Fraxure and Sneasel abusing the hell out of this. Because of all these attributes, forming a hazard stack team is easily possible with this two tbh. Such as Glimmet, Tinkatuff n such. Especially Misdreavus should force the hazards in the field enough that removing it is not an option anymore, especially when Defog is so bad rn. I think Normal Offense, Hazard Stacked, and HO should always include this pokemon in your team. Like it's mandatory or at least it will always make your team stronger than without it. So it goes without saying that I think Misdreavus is more problematic than Naclstack.
Besides all that negativity, there are some fun mons I want to talk to quickly.
I didn't know this Pokemon existed until Quag pointed it out and after facing against it, damn that pokemon is NASTY. This pokemon has some of the most obscure qualities for this meta but in a good way. At first, the typing oddly works for some mons like against Misdreavus. It has also a very respectable bulk at 70/65/65. But its offensive sets are more interesting in my eyes. It can act as a physical attacker with respectable coverage, but I prefer it as a special attacker. Calm Mind and Nasty Plot are good, but I do like the CM set as it compliments the bulk. Combine that with Rest + Early Bird which means you've some clutch recovery. It's easier to check this mon, but damn it's actually quite scary to face it. Respect the horse fr.
I actually wanted to talk about this mon before the bans because this was excellent at its job. In this meta, it's still good IMO. It's bulk still lets it switch in physical mons while not being passive. Another note is that I've been using this to consistently take care of Naclstack. It can actually force it out with the combination of Worry Seed + Toxic while not giving a fuck about Iron Defense + Body Press
Foongus @ Eviolite
Ability: Regenerator
EVs: 252 HP / 216 Def / 40 SpD
Bold Nature
IVs: 0 Atk
- Foul Play
- Synthesis
- Worry Seed
- Toxic
Well, it's not a 100% check if you're facing Curse Naclstack with the flying coverage LUL, but overall does feel like a strong counter to it. Other mons I use it for like Quaxwell, Floragato, Fraxure, etc. This pokemon will fall once the meta becomes more Knock-Off type of meta. But otherwise, it does its job well. Also being a poison type is extremely good for reasons I'll speak about later on.
Tinkatuff is easily one of the most interesting Pokemon right now, and perhaps one of the most important supporters of mons right now. That combination of Knock Off + T-wave + Mold Breaker makes this easily the best rocker in the game, and forces progress regardless you have the counters. The typing is also just perfect for keeping dark types and some special attackers in check. What it does is predictable, but it's so good at it that you've to respect it. Definitely, something any team will need to prepare for in the building for the influence it has atm.
I really like this pokemon right now. It's an extremely good check to offensive mons such as Sneasel and Pawn. But also annoys defensive mons such as Tinkatuff and Quaxwell with Will O Wisp and Flame Body at the same time. While not threatening Missy, it will still break through Sub so you're not as deadweight against it. Both rocks and spinning are good, but not at them at the same time. But if I had to pick, then it would be spin as rocks are deadass walled by Hattrem lol.
Just found it learns Sword Dance... Damn SD + rocks go in crazy as hell. Would have been more crazy if it also learned spikes, but that's probably overdone LOL. I think this pokemon has a lot of potential for that aspect alone. I haven't built much with it, but I'm definitely keeping an eye on this pokemon a lot more. Note, Adamant works here since you're still faster than Jolly Quaxwell LOL(tho that mon is mid against Gabite, rip Ice moves).
Before ending this, there is some general stuff I want to talk about. For one, I think a lot of teams should have some sort to handle Tspikes or have a poison type to absorb it. T-Spikes are mad nasty against the teams as far as I've seen atm, and by nasty I mean specifically Glimmet xd. Another thing is that there will be quite of PP stall positions you can't really avoid. A lot of NFE mons are still less powerful and you're forced to play the slow chip game or the draining PP game. One example where I can see it becoming a 1v1 stall war is trying to switch in Nuzzle Rest/Talk Hattrem. I don't think most of them are comfortable to switch into Nuzzle, so either you have an electric type that gets chipped down... Or plays the Hattrem war. Well, as far as I'm theorizing erk. Other things I wanted to go into more are Screens HO having an insane amount of potential right now, but maybe someone would talk about it. I'm not that experienced in those playstyles, but I know when something is good I'll mention it.
lovely art by in the hills 
Dunsparce
Piloswine
5Dots
Dragonillis
Maybca☆〜ゝ。∂
Mirbro
sleid
Stareal
Bisharp @ Eviolite 
Primeape @ Eviolite 
Free Switch in for whatever the croc wants to do
and other defoggers coming up, most likely with tera fighting or ground for rocks resist and Tera Blast on Stack.
probably gonna pick up quite a bit thanks to it being able to actually use its moves without being shut down completely by Bisharp.
and 
Dark is much better off
