The Minus Tiers

The Minus Tiers are different Pokemon tiers. There's Ubers-, OU-, UU-, RU-, NU-, PU-, and LC-.

The idea behind them is for each one, only the Pokemon that are B+ and below on their original viability rankings are allowed.

However, if a Pokemon has a form that involves an item that's B+ or lower, but has a base form that's A- or higher, then that Pokemon is still banned from it, despite having a form that's B+ or lower. Only applies to Pokemon who sacrifice an item to change their form are affected by this.

Banned Uber

 * Arceus (All Forms)
 * Darkrai
 * Deoxys-Attack
 * Deoxys-Speed
 * Gengar-Mega
 * Giratina-Origin
 * Groudon-Primal
 * Ho-Oh
 * Kyogre-Primal
 * Lugia
 * Mewtwo
 * Mewtwo-Mega-X
 * Mewtwo-Mega-Y
 * Rayquaza
 * Salamence-Mega
 * Xerneas
 * Yveltal

Banned OU/Below

 * Diancie-Mega
 * Klefki
 * Latios
 * Latios-Mega
 * Sableye-Mega

Allowed Uber

 * Aegislash
 * Blaziken
 * Blaziken-Mega
 * Deoxys
 * Deoxys-Defense
 * Dialga
 * Genesect
 * Giratina
 * Greninja
 * Groudon
 * Hoopa-Unbound
 * Kangaskhan-Mega
 * Kyogre
 * Kyurem-White
 * Landorus
 * Lucario-Mega
 * Mawile-Mega
 * Palkia
 * Reshiram
 * Shaymin-Sky
 * Zekrom

Banned OU

 * Azumarill
 * Bisharp
 * Charizard-Mega-X
 * Charizard-Mega-Y
 * Excadrill
 * Ferrothorn
 * Garchomp
 * Garchomp-Mega
 * Gardevoir-Mega
 * Gliscor
 * Heatran
 * Jirachi
 * Keldeo
 * Landorus-Therian
 * Latias-Mega
 * Latios
 * Latios-Mega
 * Lopunny-Mega
 * Manaphy
 * Medicham-Mega
 * Metagross-Mega
 * Pinsir-Mega
 * Rotom-Wash
 * Sableye-Mega
 * Scizor-Mega
 * Serperior
 * Skarmory
 * Slowbro
 * Slowbro-Mega
 * Talonflame
 * Thundurus
 * Tornadus-Therian
 * Tyranitar
 * Tyranitar-Mega
 * Venusaur-Mega
 * Volcanion
 * Weavile

Banned BL

 * Alakazam-Mega
 * Gyarados-Mega
 * Heracross-Mega
 * Terrakion

Banned UU/Below
N/A

Allowed BL

 * Diggersby
 * Gallade-Mega
 * Hawlucha
 * Pidgeot-Mega
 * Scolipede
 * Staraptor
 * Thundurus-Therian
 * Togekiss
 * Victini
 * Volcarona
 * Zygarde

Allowed OU

 * Amoonguss
 * Breloom
 * Chansey
 * Dragonite
 * Gengar
 * Hippowdon
 * Klefki
 * Kyurem-Black
 * Latias
 * Magnezone
 * Manectric-Mega
 * Mew
 * Quagsire
 * Raikou
 * Scizor
 * Starmie
 * Zapdos

Banned UU

 * Aerodactyl-Mega
 * Alakazam
 * Azelf
 * Beedrill-Mega
 * Blastoise-Mega
 * Celebi
 * Cobalion
 * Crawdaunt
 * Cresselia
 * Empoleon
 * Entei
 * Feraligatr
 * Florges
 * Gyarados
 * Heracross
 * Hydreigon
 * Infernape
 * Krookodile
 * Mamoswine
 * Nidoqueen
 * Reuniclus
 * Sableye
 * Salamence
 * Sceptile-Mega
 * Sharpedo-Mega
 * Snorlax
 * Suicune
 * Sylveon
 * Swampert
 * Swampert-Mega
 * Toxicroak
 * Whimsicott

Banned BL2

 * N/A

Banned RU/Below

 * N/A

Allowed BL2

 * All

Allowed UU

 * Absol-Mega
 * Aggron-Mega
 * Ampharos-Mega
 * Arcanine
 * Blissey
 * Chandelure
 * Chesnaught
 * Cloyster
 * Conkeldurr
 * Crobat
 * Darmanitan
 * Donphan
 * Doublade
 * Espeon
 * Forretress
 * Galvantula
 * Gardevoir
 * Gligar
 * Goodra
 * Haxorus
 * Heliolisk
 * Lucario
 * Machamp
 * Mandibuzz
 * Metagross
 * Mienshao
 * Milotic
 * Nidoking
 * Porygon2
 * Porygon-Z
 * Roserade
 * Rotom-Heat
 * Shaymin
 * Slowking
 * Slurpuff
 * Tentacruel
 * Umbreon
 * Vaporeon

Banned RU:

 * Alomomola
 * Blastoise
 * Camerupt-Mega
 * Delphox
 * Diancie
 * Drapion
 * Emboar
 * Fletchinder
 * Flygon
 * Glalie-Mega
 * Hitmonlee
 * Hoopa
 * Houndoom
 * Jellicent
 * Medicham
 * Meloetta
 * Rhyperior
 * Seismitoad
 * Sigilyph
 * Slowking
 * Sneasel
 * Spiritomb
 * Steelix-Mega
 * Tangrowth
 * Tyrantrum
 * Venusaur
 * Virizion

Banned BL3
N/A

Banned NU/Below

 * Abomasnow

Allowed BL3

 * Sawk
 * Sceptile

Allowed RU

 * Absol
 * Accelgor
 * Aerodactyl
 * Ambipom
 * Aromatisse
 * Cinccino
 * Clawitzer
 * Cofgrigus
 * Banette-Mega
 * Braviary
 * Bronzong
 * Dugtrio
 * Druddigon
 * Eelektross
 * Escavalier
 * Exploud
 * Gallade
 * Golbat
 * Granbull
 * Gurdurr
 * Hitmontop
 * Jolteon
 * Magneton
 * Qwilfish
 * Rotom-Mow
 * Registeel
 * Scrafty
 * Togetic
 * Trevenant
 * Typhlosion
 * Uxie

Banned NU:

 * Abomasnow
 * Archeops
 * Audino-Mega
 * Aurorus
 * Barbaracle
 * Charizard
 * Combusken
 * Garbodor
 * Hariyama
 * Hitmonchan
 * Jynx
 * Kabutops
 * Kangaskhan
 * Lanturn
 * Lilligant
 * Ludicolo
 * Magmortar
 * Malamar
 * Mesprit
 * Mismagius
 * Musharna
 * Omastar
 * Pyroar
 * Rhydon
 * Rotom
 * Samurott
 * Scyther
 * Shiftry
 * Skuntank
 * Steelix
 * Swellow
 * Tauros
 * Vivillon
 * Weezing
 * Xatu

Banned BL4

 * N/A

Banned PU/Below

 * Floatzel

Allowed BL4

 * All

Allowed NU

 * Cacturne
 * Claydol
 * Electivire
 * Ferroseed
 * Golurk
 * Klinklang
 * Manectric
 * Mantine
 * Miltank
 * Muk
 * Pelipper
 * Piloswine
 * Pinsir
 * Poliwrath
 * Primeape
 * Quagsire
 * Regirock
 * Rotom-Fan
 * Sandslash
 * Torterra
 * Vileplume
 * Zangoose

Added Banlist:

 * Arbok
 * Articuno
 * Audino
 * Bouffalant
 * Chatot
 * Crustle
 * Cryogonal
 * Dodrio
 * Duskinoir
 * Electrode
 * Floatzel
 * Fraxure
 * Golem
 * Gourgeist-XL
 * Grumpig
 * Jumpluff
 * Kadabra
 * Leafeon
 * Machoke
 * Metang
 * Monferno
 * Mr. Mime
 * Pawniard
 * Politoed
 * Probopass
 * Raichu
 * Regice
 * Relicanth
 * Roselia
 * Rotom-Frost
 * Simipour
 * Simisage
 * Stoutland
 * Stunfisk
 * Tangela
 * Ursaring
 * Vullaby
 * Zebstrika

LC-

 * Abra
 * Archen
 * Carvanha
 * Chinchou
 * Corphish
 * Diglett
 * Drifloon
 * Drilbur
 * Ferroseed
 * Fletchling
 * Foongus
 * Gastly
 * Gothita
 * Magnemite
 * Mienfoo
 * Omanyte
 * Pawniard
 * Ponyta
 * Porygon
 * Shellder
 * Skrelp
 * Snivy
 * Snubbull
 * Spritzee
 * Staryu
 * Timburr
 * Vullaby
 * Vulpix