
Mew
A -> A+ I'll admit, every time I've used Mew I seem to be absolutely terrible at using it. However it doesn't change the fact that I've seen this thing put in a ridiculous amount of work in games around solid cores by more competent players. Very efficient stall breaker, solid bulk allows it to check a number of offensive threats, and if necessary it has other tools to work with that can help the team function more from an offensive or defensive perspective. I'm for this moving up.
Already went into detail on Char X so just going to repost it here.
CharX S -> S Ok so while I do agree that Zard X has gotten worse as the meta has changed in the past several months, I don't agree with these particular statements to the point that it should drop to A+. One of the main common traits that the S ranked tier members hold is their ability to adapt to the meta game and or are able to cater its particular move set to suit the individual mons needs or the teams need. The only check I feel is consistent is Sand Offense, which we all know requires two mons to accomplish this, Sand Setter + Excadrill. The fact that two mons are forced to handle one single variant of its set shows that CharX is still a threat in the meta game. With this being said every other "check" is handled with a simple move variation or minimal support by Char X's teammates, which is a basic necessity of any mon, no different than that of the S ranked mons believe it or not. The notable flaws of Charizard X are mitigated by the previous points mentioned, its fantastic typing which contributes to its defensive traits in the form of Roost and Will-O-Wisp in particular, and the fact that new sets are coming into play just shows Char X's ability to adapt to such a hostile environment. Even with all of these traits taken into consideration, somehow it's less effective? To a degree as the time has passed yes, but to the level of A+, I can't agree with that.
M-Tyranitar
A+ -> A I've been playing around with M-Ttar for a bit. Now the reason why I think it should be moved down personally has nothing to do with its notable flaws such as x4 weak to fighting, shaky accuracy on Stone Edge, obvious stuff people would point out. I feel like it should be A because the role that it fills is done better by others such as M-Gyarados and Char X and its such an obvious role that people know what to expect and can be exploited. Also its options are really limited at times and has to rely on covering certain things while straight up losing to others. Sure this can be mitigated with some proper team building as I've had no problem with that, but at times I feel like building around M-Ttar can be a chore when I have to cover all the offensive threats in the meta that M-Ttar alone has issues covering. That's why I feel it should be moved down.
M-Gyarados
A+ -> A+ The difference between my last nomination and this one is that M-Gyarados pulls off its job more efficiently as a Dragon Dance sweeper. M-Gyarados is much easier to build around as either through its coverage or initial sheer power has the ability to handle most others threats in the meta. M-Gyarados can also effectively run other options such as Taunt, Stone Edge, Substitute to help mitigate some of the problems it has in the first place. I've personally have been running a Thunder Wave variant that serves more as a bulky attacker and acts as a lure to things like scarf Keldeo, Kyurem-B, among some other revenge killers and checks to M-Gyarados. The reason why I brought this up is that M-Gyarados still has very capable pros that distinguishes it to be an A+ ranked mon, and that's even with the rise of new prominent megas in the form of M-Gard, M-Cham, and M-Hera.
M-Heracross
A -> A M-Heracross has a stupid amount of power behind it. I still think though that M-Heracross has a shitty match up against a handful of offensive teams and I don't feel too strongly that its Sub set mitigates this flaw enough to push it to A+. M-Hera does require a general amount of support to truly function against most things not named Stall. I don't really mind if it moves up or not, but I do feel that although M-Hera is the pinnacle of an A ranked mon, I'm not exactly too sure about a placement in A+. If we're going off of it's wallbreaking potential then a move up seems justified.
M-Gardevoir
A -> A+ I'm going off of the fact that M-Gardevoir is wicked easy to fit on teams, and I mean wiiiiicked easy. Hyper Voice is easily one of the most spammable moves in the tier and it has so much power behind it. Its coverage moves pair extremely well with it and Heatran being a check doesn't stop it from wrecking it lol, let's be real with that. It's actually got some really neat stuff to work with and I'm always finding new ways to utilize M-Gard which relieves team building pressure and allows it to more effectively do its job on the archetypes of teams that it resides on. It has the option to be wallbreaker, stallbreaker, set up sweeper, has clerical choices, great typing, and an effective stat distribution to utilize all of it effectively. I feel it should be moved up.
M-Venusaur
A+ -> A+ Similar to what I think about CharX, I think M-Venu has gotten worse. However it doesn't change the fact that it's a key component on some team builds that don't want to be absolutely wrecked by things such as Azumarill, Keldeo, Ferrothorn, Breloom, and just a handful of other stuff. As Albacore said, it's one of the more solid answers to the water types in the tier, the water types that are generally getting buffs due to how the meta is changing. With increased popularity of the psychic wallbreakers in the tier the only flaw that M-Venusuar suffers from is that the team builds around it require an answer to those mentioned threats, which in reality isn't that bad and I don't think pushes it down to A.
Ferrothorn
A -> A+ I think people really underestimate of how an effectively used Ferrothorn can be a pain in the ass for a lot of teams. If you don't have a grass type on your team, you're pretty much a sign saying "Please Hit Me With Leech Seed". Ferrothorn itself forces things like non BD Azus to run Superpower to actually break Ferrothorn, forces Dragonite to run things like Fire Punch to effectively deal with it, Greninja to run HP Fire to have a slight chance, which are just a couple of reasons that show how Ferro's presence itself forces teams to run answers for it. It's a staple of stall, and is a very solid glue around certain builds who need a form of passive recovery through Leech Seed, a Stealth Rock and or Spikes setter, and overall is just really good mon.
Hippowdon
A -> A- It's already been elaborated on but anyways this thing is the definition of passive. I personally have never seen the point of using Hippowdon over other walls especially now that the caliber of wall breakers has generally improved right now. With an increase popularity of Azumarill, Keldeo, and just all the new stuff like M-Gard, I feel it's just less effective than before. I also don't even consider Hippo is a good option in terms of Sand Offense either when Ttar is just way more useful for that role and at least isn't limited to sitting there and stalling on a playstyle that has Offense in its name lol. This should drop honestly.
Already talked about Suicune moving up in an old post on like page 2.
M-Manectric + Raikou
B -> B+ I bunched them together cause they have some similar traits. Both fall under a speed tier that allows them to be solid checks to things such as M-Pinsir, Zard Y, the Genies, Birds in general, and there typing allows them some advantages in their roles. M-Manectric is a solid revenge killer that has a solid advantage against offense, while Raikou can run a great Choice Specs set to hit hard and can hit fast with base 115. I don't mind M-Manectric so much, but I do feel like Raikou can be moved up. It's a good pivot imo especially with an AV variant, and not too many things outside of stall wants to be taking Spec boosted moves from it.
Scizor
B+ -> B Just move it down imo. It's become less effective and its Band set which is the best it has I believe, isn't even that great in the first place. You can hit mid ladder easy with this thing but after that its effectiveness diminishes. Too many things handle it much more easily against more competent teams and battlers. The only reason I wouldn't drop it more is that it does have some advantage like Banded + Tech bullet punches which does hit pretty hard and allows it to be a solid pivot with the right build around it and with partners such as Rotom-W. However B+ is a bit much imo and B is more appropriate.
M-Alakazam
B -> B+ I've been advocating this for a long ass time during the BP stuff and to be frank I'm kind of tired of repeating myself constantly for this particular placement. Srn9130's post is what you should read for this move up. I can elaborate or say the same thing Srn said if somebody asks but yeah this move up is overdue.
Lucario
B -> B- Another one that I think should happen. All I really get out of Lucario is some theorymonning of what it does when in practice it's overrated. When the average team has answers to what Lucario is suppose to handle I don't see the point of using this. Its placement is more appropriate in B- rank where things like Gothitelle and Rhyperior have some notable niches but are generally outclassed as a whole in the metagame.
I advocated Celebi earlier so I'll repost it here. I think B is more appropriate but I don't mind B+ cause maybe I'm missing that it's even more effective than what I'm making it out to be.
Celebi
B- -> B I think Celebi is underrated. Like it's not the greatest of great, but I think Celebi excels in the OU environment primarily as a solid support mon. It has a good pool of options such as Thunder Wave to help slow down some faster threats, makes for a decent SR setter, Status absorber with Natural Cure and has access to some clerical options such as Healing Wish which as we all know is pretty damn nice. It's actually got a decent scarf set that allows it to check a plethora of things such as Lando-I, Keldeo, Greninja, + 1 M-Gyarados, the usual stuff a base 100 speed tier mon can revenge kill. Trick's also nice to help stall break a bit or just screw something over if using the set. Keldeo and Lando-I checks are always in high demand anyways and I think it deserves a bump up at this point in time when I consider how the meta is right now.
Everything else I have no opinion on either due to experience from using it or because I think the placement is fine where I don't need to state an opinion on it.