Zygarde + Metagross

Zygarde @ Groundium Z
Ability: Aura Break
EVs: 104 HP / 252 Atk / 152 Spe
Adamant Nature
- Outrage
- Dragon Dance
- Extreme Speed
- Thousand Arrows

Landorus-Therian @ Rocky Helmet
Ability: Intimidate
EVs: 252 HP / 236 Def / 20 Spe
Impish Nature
- Earthquake
- Stealth Rock
- Hidden Power [Ice]
- U-turn

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

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

Tangrowth @ Assault Vest
Ability: Regenerator
EVs: 252 HP / 4 Def / 252 SpD
Sassy Nature
- Giga Drain
- Knock Off
- Earthquake
- Hidden Power [Fire]

Keldeo @ Choice Scarf
Ability: Justified
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Scald
- Secret Sword
- Hydro Pump
- Stone Edge