S Rank

Hydreigon
Celebi
Aerodactyl (Mega)
Suicune
-----------------------------------
A1 Rank

Krookodile
Sylveon
Conkeldurr
Entei
-----------------------------------
A2 Rank

Swampert (Mega)
Gyarados
Sceptile (Mega)
Empoleon
Cobalion
Cresselia
-----------------------------------
A3 Rank

Beedrill (Mega)
Tentacruel
Nidoqueen
Swampert (regular)
Crobat
Roserade
Infernape
Reuniclus
Mamoswine
Klefki
-----------------------------------
A4 Rank

Kyurem
Florges
Snorlax
Sharpedo (Mega)
Blastoise (Mega)
Tornadus
Metagross
Heracross
-----------------------------------
A5 Rank

Mandibuzz
Alomomola
Blissey
Slowking
Lucario
Forretress
Mienshao
Bronzong
Crawdaunt
-----------------------------------
B+ Rank

Milotic
Aggron (Mega)
Whimsicott
Doublade
Escavalier
Gligar
Feraligatr
Rotom-C
Nidoking
Haxorus
Toxicroak
Heliolisk
Abomasnow (Mega)
-----------------------------------
B Rank

Absol (Mega)
Arcanine
Chandelure
Chesnaught
Diancie
Froslass
Houndoom (Mega)
Jellicent
Shaymin
Slurpuff
Steelix (Mega)
Venomoth
-----------------------------------
B- Rank

Aerodactyl (regular)
Darmanitan
Dragalge
Durant
Espeon
Galvantula
Hoopa
Magneton
Porygon-Z
Porygon2
Rotom-H
Sableye
Shuckle
Virizion
-----------------------------------
C+ Rank

Ampharos (Mega)
Cloyster
Fletchinder
Gardevoir
Honchkrow
Machamp
Moltres
Noivern
Registeel
Tyrantrum
Umbreon
Uxie
Zoroark
-----------------------------------
C Rank

Meloetta
Omastar
Qwilfish
Rhyperior
Yanmega
-----------------------------------
C- Rank

Donphan
Glalie (Mega)
Goodra
Pangoro
Quagsire
Seismitoad
Togetic
-----------------------------------
D Rank

Vaporeon