Right, so the shifts totally messed up what I was about to write. Let's see where I can pick up the slack.
Not much to comment on here. Kyurem is a bit weird considering how it does very well vs bulkier archetypes but it's understandable considering building with it is as tricky as it is. Did not expect Lucario rising but I suppose it's special sets can break past common cores and that Gliscor's rise means that it loses a potent check. But this happened the last time, so I don't expect it maintaining its UU position for long. Rotom-Heat is a fantastic sciz check, bird check, defogger and solid pivot and absolutely deserves the rise. Slowbro-M also deserves the rise. Even though regular is much more splashable, Mega offers a much more potent CM sweeper.
Ninetails deserves the rise. THE best fire type in RU right now. Might as well put in a few words for Emboar here. It's heartening to see the experimentation with this mon. It certainly isn't a top tier threat and is nowehere close to being the best fighting type but it does manage to wallbreak under certain match ups. Not great but certainly passable.
Well, Arcanine finally dropped to RU, to the relieve of many. As for how it will be in RU, tough to say. But the presence of sun in ninetails means that it has a much more well-defined niche as a ninetails check (although houndoom is much better for that role). It could also attempt intimidate shenanigans with it's bulky sets. Mixed sets could also be something that could take off. Band works in theory but in practice emboar is simply better. Past sets could be experimented on and brought to light. I'd see this mon somewhere in the B ranks on the merit of its bulky set which dissuades switch-ins from mons such as gligar, rhyp and tyrantrum by virtue of will'o wisp. Arcanine has the potential to be an amazing mon but metagame trends do work against it. This might be the best the canine has been in a long while.
Mantine will certainly make a splash in the tier. It honestly feels weird seeing mantine drop without such ceremony. For what it's worth, it's a terrific check to mons such as Ninetails and non-rock slide Gollisopod and possibly countering the infamous Mega Stoise. I can see it being in the A ranks but that's based on past assumptions since quite a lot has changed since Mantine was last here.
If I remember correctly, Seismotoad was being experimented with in RU shortly before it rose to UU. I don't remember it ever catching on in the tier (it was somewhere in the C-ranks) but I think the hype behind it might push for some experimentation with its sets. During the breloom meta in UU, sets like E-belt, Life orb and even Z were being used to lure mons and I can see something similar happen here. Alternatively, the set of choice might also be a bulky one (similar to what swamp runs). The main thing going for it is that it's a decent switch-in to mega stoise - an accolade which few rockers in the tier can boast. Maybe I'm blinded by the hype, but honestly, I can see seis putting in work
Incineroar and the rise of Slowbro really didn't bode well for this mon; which is a shame because this is a fantastic mon in UU. I can imagine having a much larger impact on the PU metagame. I doubt it will be as centralising as bro or that it will magically lead to the drops of the PUBL Fires/Fightings, Tauros, Samurrott or Archeops since it's very easily pressured. But for what it's worth, it's a terrific bulky water with the ability to turn the tables in taunt. Water absorb is also nifty to have.
Broken, Simply Broken. It has it all: lighting fast speed, solid coverage, reliable boosting move and lack of proper switch-ins. Still doesn't appreciate offensive pressure in scarfers and priority nor the recoil from STAB/missing Jump Kick.
From what I've heard, Kingler is a pretty decent breaker. It's doing a remarkable job despite its lacklustre coverage and speed and competition with the Otter (which can better run Z and mixed).
Quagsire was pretty intimidating to face during PU beta. While PU has certainly changed (and might have even become a bit hostile to quag), Quagsire itself won't change much, if at all. Competition from Pyuku is the biggest threat to it and the reason it may not be as prevalant as it was in beta.
Bisharp is most definitely going to be a threat to watch out for. Last time it was here, it had to contend with Keldeo and Cobalion being everywhere and the presence of Conkeldurr. Compared to before, Bisharp has much more oppurtunities to set up. SD sets with either life orb, black glass/dread plate or Z would be this mon's bread and butter with AoA sets being viable. Personally though, I'm not too much of a fan of AoA sets as even though they fix sharp's problem of fitting coverage, I feel hey don't have the same oomph as SD. A fantastic offensive threat but I highly doubt this would be broken. The rise in slack off ape, kommo-o and the flexibility of it's checks (read: chople berry cobalion) prevent it from being insurmountable. Can't predict it impacts on teambuilding.
Zeraora is also another mon that is unlikely to be broken. The main issue with this mon is that it doesn't really have anything that can deal with most of its answers. Sure it's got lures, it's got plenty of 'em, but every set has some surefire check. Almost every set without grass knot is countered in some way by Hippowdon and special walls (such as blissey, sylv, florges) beat sets without a dedicated z-move/lure. The speed tier is nice and all but it loses to Mega-Aero and Scarf Krook which are two of the best trappers right now in UU. I doubt the sets would change much from what was briefly used for OU - which, let's be real, was pretty froced to begin with. It would be nice to see this mon develop but it's not competing with Mega Manectric any time soon. I'm open to criticism for this mon since I'm just not sure exactly how it'll end up being. It certainly has the tools to become a spectacular offensive threat but those all work on paper. In practice, it's a lot more expedient to use an electric type mon that can actually pivot much more easily and reliably (read: Manectric/Rotom).
Latios, I'm iffy about. It might be a bit problematic for balance builds in UU with it's ability to freely run mixed sets and much more potent CM sets. But thanks to its lower bulk, there are plenty of offensive threats that keep it in check such as Scarf Krook and Band scizor . Might be an issue much, much later in the metagame but there is a possibility it will stay. If it does, it's worth noting that it does not outclass Latias entirely since it lacks the bulk and access to healing wish of the latter (exchanges it for memento though).
Mega Latios is banworthy on paper. It has the ability to break past would be trapper in Muk-Alola with EQ and dent special walls with a power psyshock. Add to that, decent bulk, workable speed, solid coverage and UU's history with Mega Lati@s all adds to a recipe for a ban. Can;t say for certain, but this mon is certainly up for suspect. I would heavily disgaree with a quickban though.
Right, that's about it. I think. Not exactly cutting edge analysis here but there's only so much you can do with a rehashed script at 11 in the night.
Edits: Quite a few but most were with wording, sentences and grammar (post sscript editing). I was about to add stuff about how zeraora sets are always outclassed by something else but I think that's a pretty contentious topic and would make good a good topic for debate in the UU NP page. Also, 11pm.