gen7 ou

Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 80 Def / 176 SpD
Impish Nature
- Stealth Rock
- Earthquake
- Slack Off
- Toxic

Mew @ Leftovers
Ability: Synchronize
EVs: 252 HP / 200 Def / 56 Spe
Impish Nature
- Defog
- Soft-Boiled
- Will-O-Wisp
- Knock Off

Tornadus-Therian @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
- Hurricane
- Knock Off
- U-turn
- Heat Wave

Toxapex @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 232 Def / 24 SpD
Bold Nature
IVs: 0 Atk
- Scald
- Recover
- Toxic
- Haze

Tapu Koko @ Magnet
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunderbolt
- U-turn
- Hidden Power [Ice]
- Volt Switch

Metagross @ Metagrossite
Ability: Clear Body
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Meteor Mash
- Thunder Punch
- Earthquake
- Ice Punch