Rayquaza-Mega is Banned from Ubers

Ubers

Aegislash
Arceus-(Any Form)
Blaziken
Blaziken-Mega
Darkrai
Deoxys-(Any Form)
Dialga
Genesect-*(Any Form)
Gengar-Mega
Giratina
Giratina-Origin
Groudon
Groudon-Primal
Ho-Oh
Kangaskhan-Mega
Kyogre
Kyogre-Primal
Kyurem-White
Landorus
Lucario-Mega
Lugia
Lunala
Marshadow
Metagross-Mega
Mewtwo
Mewtwo-Mega-X
Mewtwo-Mega-Y
Naganadel
Necrozma-Dawn-Wing
Necrozma-Dusk-Mane
Necrozma-Ultra
Palkia
Pheromosa
Rayquaza
Reshiram
Salamence-Mega
Shaymin-Sky
Solgaleo
Xerneas
Yveltal
Zekrom
Zygarde
Zygarde-Complete

OverUsed

Alakazam-Mega
Blacephalon
Celesteela
Chansey
Charizard-Mega-X
Charizard-Mega-Y
Clefable
Diancie-Mega
Excadrill
Ferrothorn
Garchomp
Gliscor
Greninja
Greninja-Ash
Gyarados-Mega
Hawlucha
Heatran
Jirachi
Kartana
Keldeo
Keldeo-Resolute
Kyurem-Black
Landorus-Therian
Lopunny-Mega
Magearna
Magnezone
Mawile-Mega
Medicham-Mega
Mew
Mimikyu
Pelipper
Pinsir-Mega
Rotom-Wash
Sableye-Mega
Scizor-Mega
Serperior
Skarmory
Swampert-Mega
Tangrowth
Tapu Bulu
Tapu Fini
Tapu Koko
Tapu Lele
Tornadus-Therian
Toxapex
Tyranitar
Victini
Volcarona
Zapdos

OU by technicality

Garchomp-Mega
Tyranitar-Mega

UnderUsed Banlist

Alakazam
Azumarill
Breloom
Buzzwole
Conkeldurr
Diggersby
Dragonite
Gallade-Mega
Gardevoir-Mega
Gyarados
Heracross-Mega
Hoopa-Unbound
Latias-Mega
Latios
Latios-Mega
Manaphy
Ninetales-Alola
Porygon-Z
Salamence
Scolipede
Staraptor
Thundurus
Thundurus-Therian
Venusaur-Mega
Weavile
Xurkitree

UnderUsed

Aerodactyl-Mega
Aggron-Mega
Alomomola
Altaria-Mega
Amoonguss
Azelf
Beedrill-Mega
Bisharp
Blissey
Celebi
Chandelure
Chesnaught
Cobalion
Crawdaunt
CrobatInner
Doublade
Empoleon
Gengar
Gligar
Haxorus
Heracross
Hippowdon
Hydreigon
Infernape
Klefki
Kommo-o
Krookodile
Latias
Lucario
Magneton
Mamoswine
Manectric-Mega
Moltres
Muk-Alola
Nidoking
Nihilego
Pidgeot-Mega
Primarina
Rotom-Heat
Scizor
Sharpedo-Mega
Starmie
Steelix-Mega
Suicune
Swampert
Sylveon
Tentacruel
Terrakion
Togekiss
Volcanion
Zeraora

RarelyUsed Banlist

Absol-Mega
Darmanitan
Durant
Entei
Houndoom-Mega
Kyurem
Mienshao
Reuniclus
Sceptile-Mega
Sharpedo
Slowbro-Mega
Talonflame
Tornadus
Venomoth
Zoroark

RarelyUsed

Ampharos-Mega
Araquanid
Arcanine
Banette-Mega
Bewear
Blastoise-Mega
Bronzong
Cloyster
Cresselia
Donphan
Dragalge
Drapion
Emboar
Escavalier
Espeon
Feraligatr
Florges
Flygon
Forretress
Galvantula
Gardevoir
Golisopod
Goodra
Honchkrow
Jolteon
Linoone
Lycanroc-Dusk
Machamp
Mandibuzz
Mantine
Marowak-Alola
Meloetta
Metagross
Milotic
Necrozma
Nidoqueen
Ninetales
Noivern
Pangoro
Porygon2
Raikou
Registeel
Rhyperior
Roserade
Rotom-Mow
Salazzle
Shaymin
Snorlax
Stakataka
Swellow
Toxicroak
Tsareena
Tyrantrum
Umbreon
Uxie
Virizion
Yanmega
Zygarde-10%

NeverUsed Banlist
Barbaracle
Bruxish
Camerupt-Mega
Cofagrigus
Exploud
Gigalith
Hoopa
Kingdra
Ribombee
Slurpuff
Venusaur

NeverUsed

Abomasnow-Mega
Accelgor
Aerodactyl
Ambipom
Audino-Mega
Blastoise
Braviary
Cinccino
Clawitzer
Comfey
Cryogonal
Decidueye
Delphox
Dhelmise
Diancie
Druddigon
Ferroseed
Garbodor
Glalie-Mega
Golbat
Guzzlord
Hariyama
Heliolisk
Hitmonlee
Hitmontop
Houndoom
Incineroar
Kingler
Klinklang
Magmortar
Malamar
Medicham
Miltank
Mismagius
Palossand
Passimian
Piloswine
Rhydon
Rotom
Sceptile
Scrafty
Seismitoad
Sigilyph
Silvally-Steel
Slowbro
Slowking
Sneasel
Steelix
Togedemaru
Torterra
Vanilluxe
Vaporeon
Vikavolt
Vileplume
Vivillon
Vivillon-Fancy
Vivillon-Pokeball
Weezing
Whimsicott
Xatu

PU Banlist

Archeops
Aromatisse
Charizard
Gallade
Pyroar
Samurott
Sawk
Tauros
Typhlosion

PU

Absol
Aggron
Articuno
Audino
Aurorus
Carracosta
Claydol
Clefairy
Dodrio
Dugtrio-Alola
Eelektross
Exeggutor-Alola
Froslass
Gastrodon
Golurk
Gurdurr
Haunter
Hitmonchan
Jellicent
Kabutops
Kangaskhan
Lanturn
Liepard
Lilligant
Ludicolo
Lurantis
Lycanroc
Manectric
Mesprit
Minior
Mudsdale
Omastar
Oricorio-Sensu
Persian-Alola
Poliwrath
Primeape
Quagsire
Qwilfish
Raichu-Alola
Regirock
Roselia
Rotom-Frost
Sableye
Sandslash-Alola
Scyther
Silvally-Fairy
Skuntank
Spiritomb
Stoutland

ZeroUsed Banlist

Alolan Raticate
Exeggutor
Gorebyss
Jynx
Musharna
Throh
Turtonator
Ursaring
Victreebel
Zangoose

ZeroUsed

All Pokémon not listed in tiers above are allowed

What you might see：

Bronzor
Electivire
Golem
Gourgeist-Super
Komala
Pinsir
Swanna
Abomasnow
Altaria
Crustle
Floatzel
Kecleon
Muk
Shiftry
Silvally-Water
Beheeyem
Chatot
Combusken
Kadabra
Lickilicky
Mareanie
Mr. Mime
Pyukumuku
Rapidash
Silvally-Dragon
Silvally-Fighting
Vigoroth
Zebstrika
Bouffalant
Grumpig
Leafeon
Monferno
Pawniard
Raichu
Rotom-Fan
Sawsbuck
Silvally
Silvally-Poison
Simipour
Simisear
Tangela
Toucannon
Bellossom
Camerupt
Carbink
Dusclops
Fraxure
Gabite
Golem-Alola
Granbull
Lapras
Machoke
Metang
Oricorio-Pom-Pom
Sandslash
Servine
Silvally-Dark
Simisage
Volbeat
Armaldo
Butterfree
Cradily
Dusknoir
Golduck
Hakamo-o
Marowak
Masquerain
Mawile
Misdreavus
Noctowl
Probopass
Purugly
Rampardos
Raticate
Regigigas
Shuckle
Silvally-Grass
Silvally-Ground
Smeargle
Swoobat
Wishiwashi
Ampharos
Arbok
Avalugg
Basculin
Beartic
Bibarel
Cacturne
Chimecho
Ditto
Drifblim
Dugtrio
Duosion
Electrode
Glaceon
Huntail
Jumpluff
Leavanny
Lycanroc-Midnight
Meowstic-M
Munchlax
Murkrow
Natu
Ninjask
Quilladin
Regice
Relicanth
Silvally-Electric
Trevenant
Vibrava
Vullaby
Chinchou
Corsola
Flareon
Frillish
Frogadier
Gogoat
Gumshoos
Illumise
Krokorok
Meowstic-F
Politoed
Seaking
Shiinotic
Silvally-Fire
Sliggoo
Stunfisk
Wigglytuff
Wormadam-Trash
Fearow
Floette
Gothitelle
Honedge
Klang
Oranguru
Prinplup
Silvally-Ice
Silvally-Rock
Slaking
Solrock
Togetic
Eevee
Furfrou
Girafarig
Glalie
Gourgeist
Gourgeist-Large
Gourgeist-Small
Hippopotas
Hypno
Lopunny
Lumineon
Marshtomp
Mudbray
Onix
Poipole
Seviper
Shedinja
Silvally-Bug
Silvally-Flying
Silvally-Psychic
Torkoal
Wartortle
Zweilous
Silvlly-Ghost

Little Cup

In order to be used in LC, a Pokemon must comply with the following criteria:
The Pokemon must be able to evolve.
The Pokemon must be at its earliest evolution stage.
The Pokemon must be at level 5.

Banned Moves and Abilities
Dragon Rage
Sonic Boom
Swagger
Moody

Banned Pokemons
Scyther
Sneasel
Tangela
Yanma
Swirlix
Gligar
Murkrow
Meditite
Misdreavus
Drifloon
Porygon
Cutiefly
Gothita
Vulpix
Torchic
Aipom

Banned Items
Eevium Z