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?
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
Total drops: 3
Total drops: 8
Total drops: 45 (23 ranked on Gen 3 OU VR)
Total drops: 29 (25 ranked on Gen 4 OU VR)
Total drops: 28 (15 ranked on Gen 5 OU VR)
Total drops: 21 (19 ranked on Gen 6 OU VR)
Total drops: 19 (13 ranked on Gen 7 OU VR)
Total drops: 22 (18 ranked on Gen 7/8 OU VRs)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Last edited: