All Gens This Generation's UU Resembles the Previous Generations OU

[WilhelmTheOkay]

So it's a bit of a meme now that with the power creep of modern competitive Pokemon that each new generation's UU is basically the previous generation's OU. Well I was curious as to which UU most closely mirrored the previous OU, so below I have listed every OU to UU drop between generations. Gen 4 to Gen 5 saw the most real drops, while the transistions between Gens 6 and 7 and Gens 7 and 8 saw the most high tiers drop. However, that can only say so much, so in your personal experience, which UU fits the bill the best?

Drops From OU

Disclaimer: The Viability Rankings shown are taken from the VRs when this post was written and may not represent the viability of these pokemon at the time of the Generation shift

Gen 1 > Gen 2

OU > UU
Chansey -- S rank in Gen 1 OU > B+ rank in Gen 2 UU
Slowbro -- B2 rank in Gen 1 OU > A rank in Gen 2 UU

UUBL > UU
Hypno -- D rank in Gen 1 OU > A+ rank in Gen 2 UU

Total drops: 3

Gen 2 > Gen 3

OU > UU
Golem -- B1 rank in Gen 2 OU > C+ rank in Gen 3 UU
Misdreavus -- C1 rank in Gen 2 OU > B rank in Gen 3 UU
Nidoking -- B2 rank in Gen 2 OU > B rank in Gen 3 UU

UUBL > UU
Clefable -- D2 rank in Gen 2 OU > B- rank in Gen 3 UU
Kangaskhan -- D1 rank in Gen 2 OU > S+ rank in Gen 3 UU
Meganium -- D2 rank in Gen 2 OU > C- rank in Gen 3 UU
Muk -- D2 rank in Gen 2 OU > B+ rank in Gen 3 UU
Tentacruel -- C2 rank in Gen 2 OU > S- rank in Gen 3 UU

Total drops: 8

Gen 3 > Gen 4

OU > UU
Claydol -- B2 rank in Gen 3 OU > C+ rank in Gen 4 UU
Cloyster -- D1 rank in Gen 3 OU > B rank in Gen 4 UU
Dugtrio -- B2 rank in Gen 3 OU > A rank in Gen 4 UU
Milotic -- C2 rank in Gen 3 OU > S rank in Gen 4 UU
Moltres -- C1 rank in Gen 3 OU > A rank in Gen 4 UU

OU > NU
Charizard -- C1 rank in Gen 3 OU > S- rank in Gen 4 NU
Magneton -- C1 rank in Gen 3 OU > A- rank in Gen 4 NU

The BL Explosion

UUBL > UU
Alakazam -- unranked > A- rank in Gen 4 UU
Blaziken -- E rank in Gen 3 OU > A- rank in Gen 4 UU
Chansey -- unranked > B- rank in Gen 4 UU
Donphan -- unranked > A rank in Gen 4 UU
Exeggutor -- unranked > B+ rank in Gen 4 UU
Hariyama -- D1 rank in Gen 3 OU > A- rank in Gen 4 UU
Houndoom -- E rank in Gen 3 OU > A rank in Gen 4 UU
Ludicolo -- E rank in Gen 3 OU > B rank in Gen 4 UU
Miltank -- unranked > B rank in Gen 4 UU
Registeel -- E rank in Gen 3 OU > S rank in Gen 4 UU
Sceptile -- E rank in Gen 3 OU > A rank in Gen 4 UU
Slowbro -- unranked > B- rank in Gen 4 UU
Steelix -- E rank in Gen 3 OU > B rank in Gen 4 UU
Swellow -- unranked > A- rank in Gen 4 UU
Ursaring -- unranked > B+ rank in Gen 4 UU
Venusaur -- D2 rank in Gen 3 OU > S rank in Gen 4 UU
Weezing -- E rank in Gen 3 OU > B+ rank in Gen 4 UU

UUBL > NUBL
Entei -- unranked > B+ rank in Gen 4 UU
Espeon -- unranked > C+ rank in Gen 4 UU

UUBL > NU
Armaldo -- E rank Gen 3 OU > C+ rank in Gen 4 NU
Articuno -- unranked > B- rank in Gen 4 NU
Dodrio -- unranked > B+ rank in Gen 4 NU
Dusclops -- unranked > B+ rank in Gen 4 NU
Gardevoir -- unranked > A rank in Gen 4 NU
Jumpluff -- unranked > B rank in Gen 4 NU
Jynx -- D2 rank Gen 3 OU > A+ rank in Gen 4 NU
Kadabra -- rip
Lapras -- -- unranked > B- rank in Gen 4 NU
Marowak -- E rank Gen 3 OU > B rank in Gen 4 NU
Medicham -- D2 rank Gen 3 OU > A rank in Gen 4 NU
Porygon2 -- D2 rank Gen 3 OU > B- rank in Gen 4 NU
Regice -- D2 rank Gen 3 OU > B- rank in Gen 4 NU
Regirock -- E rank Gen 3 OU > S rank in Gen 4 NU
Slaking -- unranked > C+ rank in Gen 4 NU
Tauros -- unranked > S- rank in Gen 4 NU
Typhlosion -- unranked > A- rank in Gen 4 NU
Zangoose -- rip

UUBL > NFE
Rhydon -- more like rhyferior

Total drops: 45 (23 ranked on Gen 3 OU VR)

Gen 4 > Gen 5

Uber > UU
Mew -- B rank in Gen 4 Ubers > A+ rank in Gen 5 UU

OU > UU
Azelf -- B2 rank in Gen 4 OU > B+ rank in Gen 5 UU
Bronzong -- B2 rank in Gen 4 OU > A- rank in Gen 5 UU
Empoleon -- B1 rank in Gen 4 OU > B+ rank in Gen 5 UU
Flygon -- A1 rank in Gen 4 OU > A- rank in Gen 5 UU
Kingdra -- C2 rank in Gen 4 OU > S rank in Gen 5 UU
Machamp -- C1 rank in Gen 4 OU > C+ rank in Gen 5 UU
Roserade -- C1 rank in Gen 4 OU > A+ rank in Gen 5 UU
Shaymin -- D2 rank in Gen 4 OU > A- rank in Gen 5 UU
Snorlax -- E rank in Gen 4 OU > S rank in Gen 5 UU
Suicune -- C1 rank in Gen 4 OU > A- rank in Gen 5 UU
Swampert -- A3 rank in Gen 4 OU > A- rank in Gen 5 UU
Togekiss -- D1 rank in Gen 4 OU > S rank in Gen 5 UU
Umbreon -- E rank in Gen 4 OU > A- rank in Gen 5 UU
Weavile -- E rank in Gen 4 OU > A rank in Gen 5 UU
Zapdos -- B1 rank in Gen 4 OU > S rank in Gen 5 UU

OU > RU
Aerodactyl -- D1 rank in Gen 4 OU > A rank in Gen 5 RU
Dusknoir -- E rank in Gen 4 OU > D- rank in Gen 5 RU
Electivire -- unranked > C rank in Gen 5 RU
Smeargle -- E rank in Gen 4 OU > A- rank in Gen 5 RU

OU > NU
Ninjask -- rip

UUBL > UU
Abomasnow -- D1 rank in Gen 4 OU > ???
Cresselia -- D2 rank in Gen 4 OU > B rank in Gen 5 UU
Crobat -- E rank in Gen 4 OU > B+ rank in Gen 5 UU
Heracross -- D2 rank in Gen 4 OU > A+ rank in Gen 5 UU
Honchkrow -- unranked > B- rank in Gen 5 UU
Porygon-Z -- unranked > B rank in Gen 5 UU
Raikou -- D1 rank in Gen 4 OU > A+ rank in Gen 5 UU
Yanmega -- E rank in Gen 4 OU > B rank in Gen 5 UU

UUBL > RU
Gallade -- D1 rank in Gen 4 OU > A- rank in Gen 4 RU

Total drops: 29 (25 ranked on Gen 4 OU VR)

Gen 5 > Gen 6

OU > UU
Blissey -- C- rank in Gen 5 OU > B rank Gen 6 UU
Celebi -- B rank in Gen 5 OU > A- rank Gen 6 UU
Cloyster -- B rank in Gen 5 OU > C rank Gen 6 UU
Donphan -- unranked > C- rank in Gen 6 UU
Espeon -- unranked > C rank in Gen 6 UU
Forretress -- C rank in Gen 5 OU > B- rank Gen 6 UU
Gyarados -- B- rank in Gen 5 OU > B rank Gen 6 UU
Haxorus -- unranked > C+ rank in Gen 6 UU
Hydreigon -- C rank in Gen 5 OU > S rank Gen 6 UU
Infernape -- unranked > B rank in Gen 6 UU
Lucario -- unranked > B- rank in Gen 6 UU
Mamoswine -- A- rank in Gen 5 OU > B rank Gen 6 UU
Metagross -- unranked > A rank in Gen 6 UU
Reuniclus -- A rank in Gen 5 OU > B+ rank Gen 6 UU
Tentacruel -- A rank in Gen 5 OU > B rank Gen 6 UU
Toxicroak -- D rank in Gen 5 OU > B rank Gen 6 UU
Vaporeon -- unranked > D rank in Gen 6 UU

OU > RU
Jellicent -- B rank in Gen 5 OU > A rank in Gen 6 RU
Jolteon -- unranked > A- rank in Gen 6 RU
Venusaur -- unranked > S rank in Gen 6 RU

OU > NU/PU
Gastrodon -- B+ rank in Gen 5 OU > B rank in Gen 6 NU
Ninetales -- C rank in Gen 5 OU > B- rank in Gen 6 PU
Politoed -- A+ rank in Gen 5 OU > B- rank in Gen 6 PU

UUBL > UU
Chandelure -- unranked > C+ rank in Gen 6 UU
Froslass -- unranked > B- rank in Gen 6 UU
Kyurem -- C rank in Gen 5 OU > C+ rank in Gen 6 UU

UUBL > Untiered
Gothitelle -- Shadow
Wobbuffet -- Tag

Total drops: 28 (15 ranked on Gen 5 OU VR)

Gen 6 > Gen 7

OU > UU
Amoonguss -- B rank in Gen 6 OU > A+ rank in Gen 7 UU
Azelf -- C rank in Gen 6 OU > B- rank in Gen 7 UU
Bisharp -- A rank in Gen 6 OU > B+ rank in Gen 7 UU
Gengar -- B- rank in Gen 6 OU > B rank in Gen 7 UU
Hippowdon -- C+ rank in Gen 6 OU > A- rank in Gen 7 UU
Latias -- A rank in Gen 6 OU > S rank in Gen 7 UU
Mega Manectric -- B rank in Gen 6 OU > A rank in Gen 7 UU
Mew -- B rank in Gen 6 OU > B rank in Gen 7 UU
Scizor -- C rank in Gen 6 OU > S rank in Gen 7 UU
Mega Slowbro -- A- rank in Gen 6 OU > A- rank in Gen 7 UU
Starmie -- B rank in Gen 6 OU > A- rank in Gen 7 UU
Talonflame -- A- rank in Gen 6 OU > C rank in Gen 7 UU
Volcanion -- A+ rank in Gen 6 OU > B rank in Gen 7 UU

OU > RU
Raikou -- C- rank in Gen 6 OU > B+ rank in Gen 7 RU
Slowbro -- A rank in Gen 6 OU > A rank in Gen 7 RU

OU > Untiered
Dugtrio -- Arena Trap

UUBL > UU
Mega Altaria -- A rank in Gen 6 OU > A+ rank in Gen 7 UU
Mega Pidgeot -- C rank in Gen 6 OU > B- rank in Gen 7 UU
Terrakion -- B- rank in Gen 6 OU > A+ rank in Gen 7 UU
Togekiss -- C- rank in Gen 6 OU > A rank in Gen 7 UU

UUBL > NUBL
Slurpuff

Total drops: 21 (19 ranked on Gen 6 OU VR)

Gen 7 > Gen 8

OU > UU
Azumarill -- C rank in Gen 7 OU > B rank in Gen 8 UU
Celesteela -- A- rank in Gen 7 OU > A+ rank in Gen 8 UU
Chansey -- A- rank in Gen 7 OU > A rank in Gen 8 UU
Excadrill -- A rank in Gen 7 OU > A+ rank in Gen 8 UU
Jirachi -- B+ rank in Gen 7 OU > B rank in Gen 8 UU
Keldeo -- C- rank in Gen 7 OU > A rank in Gen 8 UU
Rotom-Wash -- A rank in Gen 7 OU > A rank in Gen 8 UU
Skarmory -- B rank in Gen 7 OU > A rank in Gen 8 UU
Tangrowth -- B rank in Gen 7 OU > A+ rank in Gen 8 UU
Tapu Bulu -- B rank in Gen 7 OU > C+ rank in Gen 8 UU

UUBL > UU
Conkeldurr -- unranked > A- rank in Gen 8 UU
Diggersby -- unranked > A+ rank in Gen 8 UU
Gyarados -- C+ rank in Gen 7 OU > A rank in Gen 8 UU
Salamence -- unranked > A+ rank in Gen 8 UU
Thundurus-Therian -- B- rank in Gen 7 OU > A rank in Gen 8 UU
Scolipede -- unranked > C+ rank in Gen 8 UU

UUBL > RU
Xurkitree -- unranked > A- rank in Gen 8 RU
Porygon-Z -- unranked > B- rank in Gen 8 RU

UUBL > PU
Quagsire -- C rank in Gen 7 OU > A- rank in Gen 8 PU

Total drops: 19 (13 ranked on Gen 7 OU VR)

Gens 7/8 > Gen 9

OU > UU
Garchomp -- A+ rank in Gen 8 OU
Heatran -- S- rank in Gen 8 OU
Pelipper -- A- rank in Gen 8 OU
Mew -- B rank in Gen 8 OU
Tornadus-Therian -- A+ rank in Gen 8 OU
Tyranitar -- A rank in Gen 8 OU
Volcanion -- A rank in Gen 8 OU
Weavile -- S- rank in Gen 8 OU

OU > RU
Barraskewda -- A- rank in Gen 8 OU
Bisharp -- B- rank in Gen 8 OU
Magnezone -- B+ rank in Gen 8 OU
Slowbro -- A rank in Gen 8 OU

UUBL > UU
Breloom -- unranked in Gen 7 OU
Gengar -- C+ rank in Gen 8 OU
Hawlucha -- B rank in Gen 8 OU
Hoopa-Unbound -- B- rank in Gen 7 OU
Kommo-o -- C+ rank in Gen 8 OU
Zapdos-Galar -- B+ rank in Gen 8 OU

UUBL > RUBL
Mienshao-- unranked in Gen 8 OU

UUBL > RU
Moltres-Galar -- B+ rank in Gen 8 OU
Staraptor -- unranked in Gen 7 OU
Thundurus-Incarnate -- unranked in Gen 8 OU

Total drops: 22 (18 ranked on Gen 7/8 OU VRs)

 

[WilhelmTheOkay]

Hello, I updated the original post to reflect the October drops (which will likely be inaccurate within a week). If I missed anything please let me know.

As a bonus, the recent drops have brought rise to a brand new original joke that Gen 9 UU now resembles Gen 9 OU, so I listed out all of the drops from the original 38 OU pokemon in December 2022.

Gen 9 > Gen 9

Usage For Nov '22

OU > UU
Amoonguss -- A- rank in Dec '22
Breloom -- B+ rank in Dec '22
Ceruledge -- C rank in Dec '22
Clodsire -- A- rank in Dec '22
Cyclizar -- A+ rank in Dec '22
Garchomp -- A- rank in Dec '22
Garganacl -- A rank in Dec '22
Iron Hands -- B+ rank in Dec '22
Iron Treads -- A rank in Dec '22
Lokix -- C rank in Dec '22
Maushold -- D rank in Dec '22
Meowscarada -- B rank in Dec '22
Orthworm -- B- rank in Dec '22
Quaquaval -- B+ rank in Dec '22
Scizor -- B+ rank in Dec '22
Skeledirge -- A- rank in Dec '22
Tyranitar -- B rank in Dec '22

OU > NU
Grimmsnarl -- A rank in Dec '22
Orthworm -- B- rank in Dec '22

OU > PU
Ditto -- B rank in Dec '22

Total: 19
---

OU > Ubers
Annihilape -- A+ rank in Dec '22
Baxcalibur -- B+ rank in Dec '22
Chien-Pao -- A+ rank in Dec '22
Chi-Yu -- S- rank in Dec '22
Volcarona -- A- rank in Dec '22

UU > Ubers
Espathra -- A+ rank in Dec '22

Total: 6
---

OU > OU
Corviknight -- A rank in Dec '22
Dondozo -- A rank in Dec '22
Dragapult -- S- rank in Dec '22
Dragonite -- A+ rank in Dec '22
Gholdengo -- S rank in Dec '22
Glimmora -- A rank in Dec '22
Great Tusk -- S- rank in Dec '22
Iron Moth -- A- rank in Dec '22
Iron Valiant -- A+ rank in Dec '22
Kingambit -- A+ rank in Dec '22
Roaring Moon -- A+ rank in Dec '22
Ting-Lu -- A+ rank in Dec '22
Torkoal -- B+ rank in Dec '22
Toxapex -- B rank in Dec '22

Total: 14
---

Only OU Club

These 12 Pokemon are the only ones to have been OU in Scarlet and Violet every month since the start of the tier.

Corviknight
Dondozo
Dragapult
Dragonite
Gholdengo
Glimmora
Great Tusk
Iron Moth
Iron Valiant
Kingambit
Ting-Lu
Toxapex

Great Tusk and Gholdengo have been top 5 in usage every single month, no other Pokemon has been in the top 10.​

 

[WilhelmTheOkay]

Due to there being a whole bunch of OU mons in the lower tiers at the moment, I thought I should give this post an update. So, this is how it stands following the 2024 drops:

OU to UU
Blissey - was B rank in SS OU
Garchomp - was A+ rank in SS OU
Greninja - was A rank in SM OU
Manaphy - was A- rank in SM OU
Ninetales-Alola - was A- rank in SS OU
Tornadus-Therian - was A+ rank in SS OU
Tyranitar - was A rank in SS OU
Volcanion - was A rank in SS OU
Zapdos - was A+ rank in SS OU

UUBL to UU
Blaziken - was B+ rank in SS OU
Breloom - unranked in SM OU
Gengar - was C+ rank in SS OU
Hawlucha - was B rank in SS OU
Kommo-o - was C+ rank in SS OU
Latias - was C rank in SS OU
Latios - was C rank in SS OU
Moltres-Galar - was B+ rank in SS OU
Zapdos-Galar - was B+ rank in SS OU

Ubers to UU
Deoxys-Defense - was D rank in SM Ubers
- - - -

OU to RUBL
Mew - was B rank in SS OU
Mienshao - unranked in SS OU

OU to RU
Barraskewda - was A- rank in SS OU
Bisharp - was B- rank in SS OU
Hoopa-Unbound - was B- rank in SM OU
Magnezone - was B+ rank in SS OU
Slowbro - was A rank in SS OU

UUBL to NU/PUBL
Staraptor - unranked in SM OU
Terrakion - was C rank in SS OU
Thundurus - unranked in SS OU
- - - -

Total: 29 (25 ranked)

So yes, perhaps unsurprisingly, Gen 9 has comparable amount "last gen's OU"-ness to Gen 5 so far, especially considering the drops of multiple OU staples such as Ttar, Zapdos, Latios, Garchomp, Torn-T, and Magnezone. Nevertheless, there is still plenty of time for more movement between the tiers, so who knows how this will all end up.

 

[ninth]

This is some pretty interesting information! You can see how a good deal of these came from 8 PP recovery. To me the biggest example is Deoxys-D - losing half of its Recovers completely butchers its ability to outstall its opponents.