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

Tapu Koko @ Magnet  
Ability: Electric Surge  
EVs: 12 HP / 252 SpA / 244 Spe  
Timid Nature  
- Thunderbolt  
- Hidden Power [Ice]  
- Volt Switch  
- U-turn  

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

Victini @ Choice Scarf  
Ability: Victory Star  
EVs: 252 Atk / 4 SpA / 252 Spe  
Hasty Nature  
- V-create  
- Bolt Strike  
- U-turn  
- Trick  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Diamond Storm  
- Moonblast  
- Earth Power  
- Stealth Rock  

Serperior @ Leftovers  
Ability: Contrary  
Shiny: Yes  
EVs: 56 HP / 200 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Hidden Power [Fire]  
- Leech Seed  
- Substitute