Terapagos is the only Pokémon around right now I can confidently say is probably broken, everything else it's too early to say and we also must keep in mind the bias we feel where if we notice a new Pokémon redefining a role or shifting viability drastically, it may just be a change, not a problem. Here are my thoughts so far on what may be a few early radar candidates or mons others have discussed:
this thing is hilarious. 160 speed taunt makes this match really well into most leads not named Samurott. Haven't seen the so called offensive sets in action but I'm a little skeptical about them being that crazy due to relatively low output and being outsped by the new booster dudes. I don't think lead sets are broken at all, sure glimmora is about to be the best lead in UU, but what does this thing do? Set screens and hazards? So like any other HO lead? It does the job better than most of its competition but at the end of the day the outcome is pretty much the same. Plus Samurott is tailor made to destroy this mon. Seems to be a pult sidegrade as a screen setter since no curse. I like what this thing is so far
Iron Boulder seems reeeally strong... 124 speed with booster and the immediate power from that atk stat & fantastic movepool is a pretty big hurdle to jump whenever it's sent out. This thing smokes non scarf Darkrai but can be revenged by scarf variants, and also out speeds and ohkos valiant (another Mon that seems to have fallen off.) it's still early but I could see this getting banned lol
kind of torn on whether this guy is good or not, I tried the "Bax at home" set with Alolatales support but this thing really doesn't like the way Deoxys shits on Ninetales. I've gotten a pretty good sweep with it but having to commit your Tera to reliably hit steels while Terapagos is legal is not it. Once things settle a little more im Curious about specs on balance with Glowking support. Speed is kind of middling too, basically kind of an unfortunate tool kit where it can't do anything super well but does some niches well enough.
Packing Heat is no joke. Great bulk and defensive and offensive type, super scary so far. Hits crazy hard too and has great setup tools, and the access to booster energy or sun proto (incl speed) is pretty nasty. Not being able to take advantage of that dragon type with fairy moves also doesn't really work, another reason iron valiant is currently flipping burgers.
Long Neck is pretty scary too! The type is also pretty good and he's just so bulky... thunderclap is a scary move, complements its stats perfectly. Only played against a couple so don't have more developed thoughts
another hilarious mon, QD is still great but while Terapagos is legal you don't want to Tera it, so the movepool almost feels limited... Bug Buzz is also not great but funny af vs the people spamming Mid-rai and Deoxys. This Mon is what's most reliably winning me games right now
this thing is shit LOL so far I'm like 2 for 12 in terms of Darkrai putting work in when I send it out. As predicted, hits like a wet noodle without nasty plot and doesn't want to be hit on the plot turn. Scarf Actually seems decent! But there are so many really strong dudes with booster now and anything but scarf loses to Boulder (or honestly all of the new booster mons) hard. Maybe the worlds frailest Mon. If anything is actually banned we could see this change I guess. Has anyone had good luck with hypnosis I've not tried it yet
stellar is dix, not worth committing your Tera for +1 from a neutral move when you can just spam leaf storm. Pretty good Pokémon but not worthy of any tiering action any time soon
speed boost might be a lot, bulk up sets are really good
probably cracked, the ability of the non Tera form is really good, absurdly bulky and strong post Tera and the toolkit is pretty incredible, you can also run just the one 120 BP neutral move and be fine offensively and spend the rest on setup. Taking this thing down is a Herculean effort and often for HO (which is what I've been running mostly) takes multiple mons. Double dance seems to be the scariest set so far. This is the only Pokémon I'm pretty comfortable saying should probably be banned
very curious on other people's takes, what have your experiences been with these mons, what are your thoughts? Am I on drogas or cooking?