Zygarde @ Iapapa Berry  
Ability: Aura Break  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Thousand Arrows  
- Outrage  
- Extreme Speed  

Gyarados-Mega @ Gyaradosite  
Ability: Mold Breaker  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Crunch  
- Waterfall  
- Earthquake  

Garchomp @ Rocky Helmet  
Ability: Rough Skin  
EVs: 252 HP / 16 Def / 240 Spe  
Jolly Nature  
- Stealth Rock  
- Earthquake  
- Toxic  
- Dragon Tail  

Magearna @ Shuca Berry  
Ability: Soul-Heart  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Ice Beam  
- Thunderbolt  
- Trick Room  
- Focus Blast  

Greninja @ Waterium Z  
Ability: Battle Bond  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Dark Pulse  
- Hydro Pump  
- Spikes  
- Water Shuriken  

Tangrowth @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 4 Atk / 252 SpD  
Sassy Nature  
IVs: 30 Atk  
- Hidden Power [Ice]  
- Giga Drain  
- Knock Off  
- Earthquake