S Rank: Reserved for Pokemon that are the pinnacle of the OU metagame. These Pokemon are able to perform a variety of roles very effectively, or can just do one extremely well. Their use has low risk involved and high reward exerted. Pokemon in this rank have very few flaws that are patched up by numerous positive traits. These Pokemon define the metagame.
S = 最牛逼
A Rank: Reserved for Pokemon that are fantastic in the OU metagame, and can sweep, support, or wall significant portions of the metagame. These Pokemon require less support than most others to be used effectively and have few flaws that can easily be compensated for when compared to their positive traits. These Pokemon exert a strong presence in the metagame.
A = 牛逼
B Rank: Reserved for Pokemon that are great in the OU metagame. These Pokemon have more notable flaws than those above them that affect how they function in the tier. Their positive traits still outshine their negatives, but they require a bit more team support to bring out their full potential. These Pokemon exert an above average presence in the metagame.
B = 不错，需要队伍支持
C Rank: Reserved for Pokemon that are mediocre in the OU metagame, but have just as many notable flaws that prevent them from being effective. Pokemon in the C tier often require significant support to be effective. Pokemon from this rank tend to face a lot of competition with the more commonly used Pokemon. These Pokemon exert a below average presence in the metagame.
C = 不怎么好用，需要大量队伍支持。
D Rank: Reserved for Pokemon that are highly mediocre in the OU metagame, but are viable enough to justify their use on select teams. These Pokemon are only capable of doing their specific task and fail at doing anything more than that. Pokemon from this rank have multiple crippling flaws that prevent them from being successful a majority of the time, and are often severely outclassed because of it. These Pokemon exert a poor presence in the metagame.
D = 不好用。 不过有亮点。
S = 最牛逼
A Rank: Reserved for Pokemon that are fantastic in the OU metagame, and can sweep, support, or wall significant portions of the metagame. These Pokemon require less support than most others to be used effectively and have few flaws that can easily be compensated for when compared to their positive traits. These Pokemon exert a strong presence in the metagame.
A = 牛逼
B Rank: Reserved for Pokemon that are great in the OU metagame. These Pokemon have more notable flaws than those above them that affect how they function in the tier. Their positive traits still outshine their negatives, but they require a bit more team support to bring out their full potential. These Pokemon exert an above average presence in the metagame.
B = 不错，需要队伍支持
C Rank: Reserved for Pokemon that are mediocre in the OU metagame, but have just as many notable flaws that prevent them from being effective. Pokemon in the C tier often require significant support to be effective. Pokemon from this rank tend to face a lot of competition with the more commonly used Pokemon. These Pokemon exert a below average presence in the metagame.
C = 不怎么好用，需要大量队伍支持。
D Rank: Reserved for Pokemon that are highly mediocre in the OU metagame, but are viable enough to justify their use on select teams. These Pokemon are only capable of doing their specific task and fail at doing anything more than that. Pokemon from this rank have multiple crippling flaws that prevent them from being successful a majority of the time, and are often severely outclassed because of it. These Pokemon exert a poor presence in the metagame.
D = 不好用。 不过有亮点。
Keldeo
Metagross (Mega)
Sableye (Mega)
Altaria (Mega)
Azumarill
Bisharp
Charizard (Mega-X)
Clefable
Diancie (Mega)
Gengar
Gliscor
Gyarados (Mega)
Heatran
Landorus
Landorus-T
Lopunny (Mega)
Latios
Slowbro (Mega)
Talonflame
Thundurus
Celebi
Charizard (Mega-Y)
Excadrill
Ferrothorn
Gallade (Mega)
Garchomp
Gardevoir (Mega)
Latias
Manaphy
Manectric (Mega)
Pinsir (Mega)
Rotom-W
Scizor (Mega)
Slowbro
Tyranitar
Venusaur (Mega)
Aerodactyl (Mega)
Diggersby
Gyarados
Heracross (Mega)
Hippowdon
Jirachi
Magnezone
Mamoswine
Politoed
Starmie
Tornadus-T
Alakazam (Mega)
Amoonguss
Beedrill (Mega)
Breloom
Chansey
Chesnaught
Dragonite
Hawlucha
Kabutops
Kingdra
Klefki
Kyurem-B
Latias (Mega)
Mew
Raikou
Sceptile (Mega)
Skarmory
Swampert (Mega)
Tentacruel
Terrakion
Volcarona
Conkeldurr
Cresselia
Gothitelle
Houndoom (Mega)
Mandibuzz
Quagsire
Omastar
Scizor
Suicune
Sharpedo (Mega)
Togekiss
Victini
Weavile
Alomomola
Azelf
Crawdaunt
Dragalge
Empoleon
Garchomp (Mega)
Hydreigon
Lucario
Magneton
Rhyperior
