I'm really enjoying this new metagame so far. Plenty of Pokemon have some newfound niches that are applicable in the metagame, and the reintroductions are certainly shaking up the tier so far. Here are some of my thoughts on whats been happening:Azumarill is a lot of fun in this metagame. Z-Belly Drum sets are really potent, though I feel that their biggest drawback is the amount of support required for a sweep. Fast Water-resists that can tank a hit and revenge kill, most notably Serperior and Rotom-W, should be removed from play, and Mega Aggron, while not super common, acts as a total defensive countermeasure to it assuming no Superpower and should be taken care of before it sweeps as well. I've had the most fun with Choice Band sets, as they have really limited switch-ins and burden a lot of Azumarill's common checks, including Amoonguss and Tentacruel, with the removal of their item via Knock Off. In terms of how healthy Azu is for the meta, I feel like it has a few issues that prevent it from deserving a return to BL. Its typing is really convenient, though it can only really act as a switch-in to something once given its lack of recovery and average bulk without investment. It also sits at a really poor Speed tier, which is why semi-strenuous support is required for a Belly Drum sweep. Azumarill is absolutely amazing in the metagame and has easily cemented itself already as one of the tier's best physical threats, though I think that its drawbacks are enough for it to refrain from going back to where it just came from.This thing is super annoying. I think it's fine for the metagame, though it's certainly frustrating dealing with the SubSeed set due to Serperior's amazing Speed stat. In addition to taking names with its SubSeed set, Serperior can viably run a Z-Hyper Beam set to take down some of its more reliable checks like Amoonguss, Mega Altaria, and Mandibuzz, and despite what a first look at its movepool might suggest, it actually has some adequate options to cover a good portion of the metagame, like Dragon Pulse and HP Fire. Glare is another great option on it so that it can cripple what it can't beat with paralysis, and overall I think that Serperior's addition to the metagame will certainly shake things up. It'll serve as a really reliable offensive check to a few annoying Pokemon in the tier, like Rotom-W, Suicune, and Primarina. Its underwhelming initial power and average bulk and typing keep it from being too much, though I think it'll still prove to be a top threat and something that influences a good portion of the metagame.Scolipede is the only drop that I legitimately think could be unhealthy for the metagame. Speed Boost + Swords Dance is a nasty combination, and it has a plethora of coverage options to choose from that allow it to absolutely plow through offense. You could argue that Pokemon like Quagsire and Hippowdon can take care of it, though the latter is broken through by Hydro Vortex while the former isn't ever seen on the offensive teams that Scolipede steamrolls due to being such a huge momentum sap. Scolipede's ability to break through nearly anything on offense with Bug/Ground/Water coverage makes it extremely troublesome to deal with, and Speed boost only exacerbates the issue given that almost no relevant scarfer is outpacing it once it reaches +1. I'm not calling for a quick-ban since it isn't allowed lol, but I seriously think that whether or not Scolipede is too much for the tier should be questioned somewhere down the road. It's certainly proving itself to be one of the most overly centralizing presences in the tier in my eyes.Those are my thoughts on the Pokemon reintroduced to the tier. However, one Pokemon that's already been around but just got insanely better has been on my mind ever since it got access to its signature move, and that Pokemon is none other than our generic disappointing base-form box legendary, Necrozma.Necrozma @ Groundium ZAbility: Prism ArmorEVs: 252 Atk / 4 SpD / 252 SpeJolly Nature- Swords Dance- Photon Geyser- Stone Edge- EarthquakeNecrozma got Photon Geyser as these new games came out, and now that it finally has a (technically) physical STAB attack that it can abuse, I think there's a lot of merit to using the set listed above. Photon Geyser + Edgequake is absolutely excellent coverage, and has really limited switch-ins outside of Krookodile, which is falling off, and Bronzong, which is rather irrelevant at this stage in the metagame. Necrozma also has a fantastic ability and great bulk for setup, allowing it to easily reach +2 to begin sweeping. Groundium Z is the Z Crystal I currently like most on it, because it guarantees the breaking of Scizor, Doublade, Mega Steelix, and other bulky Steel-types. I've also toyed around with Psychium Z, which can be really useful for powering through the likes of Gliscor and Hippowdon in one hit.Here are some replays of Necrozma in action: Replay 1 - despite what was arguably a lackluster performance from the opposition, I think that Necrozma's sweeping prowess is adequately showcased here as it breaks past Alolan Muk early game and guarantees a late-game sweep with its fantastic coverage. Replay 2 - Here, Necrozma doesn't last as long due to me not remembering that Rotom-W ran sets that could outspeed it ;~; Regardless, the sue of Groundium Z is shown here as it aids Necrozma in easily powering through Scizor, which would otherwise live a hit and do massive damage in return.Overall, I think that Necrozma now has enough going for it to be a legitimate threat in the metagame and something worthy of being seen on way more teams than before. Its biggest issues are that due to foregoing recovery, it's easily worn down and succumbs to offensive pressure, and that its typing is also rather lackluster. Regardless, I think that its fairly easy to support, immensely benefitting from tools like Healing Wish from Latias if they're capable of being fit onto a team. I'm predicting a ranking of B or B- for this monster, as it's seriously such a potent threat now that it got one of the only things keeping it from posing a big physical threat.