B+ -> A-: Disagree
Chansey is pretty much mandatory on stall right now, and has a very valuable niche as a pokemon that no other pokemon can do exactly. Chansey's titanic HP stat and access to eviolite pretty much makes her the premier check of many strong special attackers like Gardevoir, Zard-Y, and Volcanion, just to name a few, and not to mention Chansey's decent defensive stat when combined with her HP means that many physical attackers struggle to break past Chansey. Chansey is also a great cleric and has access to many useful moves like Wish, Heal Bell, and Thunder Wave. However, this being said, I do not think Chansey should rise. Both Charizard-Y and Volcanion have dropped in usage not to mention Mega Latias has gained usage which is a pokemon that Chansey struggles to compete with. Chansey is also indisputably one sided, and has many flaws, distinctly a lack of offensive presence which makes Chansey complete setup fodder. Many setup pokemon like Slowbro or Zard-X setup on Chansey depending on its moves. Not to mention pokemon like Heal Bell Altaria, Scizor, and Clefable will always setup on Chansey, regardless of its moves. Chansey also struggles to find a place on playstyles other than stall and it has horrible splashability, as Chansey more or less just sort of kills all momentum on a team with its lack of offensive presence. I mean ultimately why put this mon' on an offensive or balance team, when there are so many better options like Mega Latias or Jirachi, which have either have more offensive presence, the ability to setup, or a better typing. Chansey is also exceptionally weak to many stallbreakers like Talonflame, Gliscor, and struggles to beat many special wallbreakers/defensive mons' with taunt, leech seed, or other recovery moves like Gardevoir, Serperior, Venusaur, and Thundurus, which are pokemon that Chansey is normally supposed to check. There is also been an immense surge of more strong physical attackers and fighting typing in the tier, like Heracross, Medicham-Mega, and CB Tyranitar, plus pokemon like Keldeo have relatively stayed the same in usage for OU. Also
Squidlick's argument of "if you lose your counters to this pokemon, you will lose" (not a direct quote) is a very stupid argument as not only is that true for every OU pokemon, but a smart player is not going to let their anti-chansey measure get weakened that easily, especially when you have a Chansey. Yes, by nature of the game and correct play their Chansey check will get weakened throughout the game, but those situations are so few and far between, when hard Chansey counters like Ferrothorn, Sableye and CM Clefable are so common that "Chansey will win if you disregard it" is not realistic reason to put Chansey in A-. Chansey is not a terrible pokemon, it has a solid niche as a defensive wall to many special attackers making it great on stall. Also Chansey does fare better than many other B+ pokemon like Mega Altaria, and Suicune and is a slight notch above the tier, however I believe A- is pushing the pokemon a bit too far, especially when it has all of these weakness, yes it is a staple of stall, but it literally fails at all other things.
A- -> B+: Agree
Although Zard is amazing in Doubles, I personally believe it just does not work that well in OU singles. The main reason for this is its crippling Stealth Rock weakness losing almost half its health whenever it switches in. This means you have to get a dedicated defogger/rapid spinner because you have to remove hazards every time before this pokemon comes in. This simply is just to much work for a wallbreaker especially when considering that to beat stall often times you need to make hard doubles with your pokemon to constantly get the advantage. You cannot make these predictions when you constantly have to defog or lose half you health on the switch in. This is a lot of effort that is just unnecessary when ultimately you can bring a pokemon like Mega Heracross which destroys stall even better than Zard without as many weakness and a similar speed tier. In a meta where many strong physical wallbreakers are rising, Zard cannot keep up. Also many checks and counters to zard are rising in usage, like Mega Latias and Mega Diancie. While I do not consider Charizard-Y to be a bad pokemon, I just think it is outclassed by many other wallbreakers which either have a better matchup against stall, a lack of stealth rock weakness, or an even matchup against balance.
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Nominations I would like to bring up:
C+ -> B/B-
I have already brought this up before on page 5 and if I were to make a full post I would probably just be repeating myself but I would like to bring up and counteract many common arguments against Zapdos.
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While this argument has already been countered, I would like address again, as I believe it is a very common argument against Zapdos' viability as a pokemon because of the fact that Zapdos barely got into OU. So let's get this out of the way first, usage does have something to do with viability. While I do not believe that an entire argument or a pokemon's ranking in general should be based off of usage, usage generally means that a pokemon has a good niche and more people want to use that niche. Especially usage in the higher rankings like 1695 and 1825 (May, 2016), which are actually the the two ladder rankings which got Zapdos into OU as both of the other low ladder rankings did not even have a 3.41 usage for Zapdos. Yes pokemon like Conkeldurr and Sylveon were trash but were in OU, but those pokemon dropped because they were garbage. Also the only reason why Conk and Sylveon were in OU was because of the low ladder not the higher ladder.
Also while I do not have a direct quote from a player, even the Smogon page itself says "
Even fully invested, Zapdos doesn't have the raw bulk to take strong, neutral STAB attacks from the likes of Latios, Talonflame, and Mega Lopunny.". Which is true, however Zapdos true niche comes from its typing. Zapdos has a unique defensive typing that gives it the ability to check many common steel types, flying types, and defog on many of them in the tier. This niche to check Scizor and Tornadus in particular is unrivaled and its access to a 125 SpA, toxic and twave makes it great on balance teams that do not want to kill too much momentum.
I am not trying to say that Zapdos is amazing or even that great. I personally believe its only really "okay" in the current metagame because of its weakness to rocks, inability to take a lot of neutral attacks, and its weakness to common OU pokemon like Diancie and Clefable. However, I do believe that Zapdos' niche defensive typing that is completely unique and its ability to check many common OU pokemon with its recovery, pressure/static and its other coverage moves makes C+ a very strange ranking for Zapdos.