Fini Gross

Tapu Koko @ Focus Sash
Ability: Electric Surge
Level: 50
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Sky Drop
- Nature's Madness
- Thunderbolt
- Protect

Tapu Fini @ Choice Specs
Ability: Misty Surge
Level: 50
EVs: 252 HP / 20 Def / 164 SpA / 44 SpD / 28 Spe
Modest Nature
IVs: 0 Atk
- Muddy Water
- Hydro Pump
- Moonblast
- Dazzling Gleam

Metagross @ Assault Vest
Ability: Clear Body
Level: 50
EVs: 220 HP / 252 Atk / 36 Def
Adamant Nature
- Meteor Mash
- Zen Headbutt
- Bullet Punch
- Earthquake

Marowak-Alola @ Thick Club
Ability: Lightning Rod
Level: 50
EVs: 252 HP / 188 Atk / 68 SpD
Brave Nature
IVs: 0 Spe
- Flare Blitz
- Shadow Bone
- Bonemerang
- Protect

Porygon2 @ Eviolite
Ability: Download
Level: 50
EVs: 244 HP / 92 Def / 28 SpA / 140 SpD
Sassy Nature
IVs: 0 Atk / 0 Spe
- Thunderbolt
- Ice Beam
- Recover
- Trick Room

Araquanid @ Waterium Z
Ability: Water Bubble
Level: 50
EVs: 252 HP / 252 Atk / 4 SpD
Brave Nature
IVs: 0 Spe
- Liquidation
- Leech Life
- Substitute
- Protect