Zygarde + Pinsir + Chansey

Zygarde @ Choice Band
Ability: Aura Break
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Thousand Arrows
- Extreme Speed
- Outrage
- Toxic

Pinsir-Mega @ Pinsirite
Ability: Aerilate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Return
- Quick Attack
- Close Combat

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 248 HP / 88 Def / 172 SpD
Relaxed Nature
IVs: 0 Spe
- Spikes
- Leech Seed
- Power Whip
- Gyro Ball

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 248 HP / 192 Def / 68 Spe
Bold Nature
IVs: 0 Atk
- Taunt
- Hydro Pump
- Moonblast
- Defog

Magnezone @ Assault Vest
Ability: Magnet Pull
EVs: 72 HP / 252 SpA / 184 Spe
Modest Nature
IVs: 0 Atk
- Volt Switch
- Thunderbolt
- Flash Cannon
- Hidden Power [Fire]

Chansey @ Eviolite
Ability: Natural Cure
EVs: 252 Def / 48 SpA / 208 SpD
Bold Nature
IVs: 0 Atk
- Ice Beam
- Toxic
- Stealth Rock
- Soft-Boiled