Meta+Bulu+Zygarde

Heatran @ Grassium Z
Ability: Flash Fire
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Solar Beam
- Magma Storm
- Earth Power
- Stealth Rock

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 248 HP / 224 Def / 16 SpD / 20 Spe
Bold Nature
IVs: 0 Atk
- Taunt
- Nature's Madness
- Surf
- Defog

Tapu Bulu @ Fightinium Z
Ability: Grassy Surge
EVs: 192 HP / 252 Atk / 64 Spe
Adamant Nature
- Swords Dance
- Superpower
- Zen Headbutt
- Horn Leech

Zygarde @ Leftovers
Ability: Aura Break
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Dragon Dance
- Coil
- Thousand Arrows
- Outrage

Metagross-Mega @ Metagrossite
Ability: Clear Body
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Meteor Mash
- Zen Headbutt
- Thunder Punch
- Hammer Arm

Greninja (M) @ Choice Specs
Ability: Battle Bond
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- U-turn
- Water Shuriken
- Hydro Pump
- Dark Pulse