SD Decidueye/Sharpedo

Marowak-Alola @ Leftovers
Ability: Lightning Rod
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Will-O-Wisp
- Shadow Bone
- Earthquake
- Flare Blitz

Decidueye @ Leftovers
Ability: Overgrow
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Swords Dance
- Spirit Shackle
- Roost
- Baton Pass

Celesteela @ Leftovers
Ability: Beast Boost
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Air Slash
- Fire Blast
- Leech Seed
- Autotomize

Nihilego @ Focus Sash
Ability: Beast Boost
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Wave
- Power Gem
- Stealth Rock
- Toxic Spikes

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 252 HP / 200 Def / 56 Spe
Bold Nature
IVs: 0 Atk
- Taunt
- Calm Mind
- Moonblast
- Surf

Sharpedo-Mega @ Sharpedonite
Ability: Speed Boost
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Waterfall
- Crunch
- Poison Jab
- Protect