Giratina @ Safety Goggles  
Ability: Mold Breaker  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Toxic Spikes  
- Stealth Rock  
- U-turn  
- Shore Up  

Gengar-Mega @ Focus Sash  
Ability: Merciless  
Shiny: Yes  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Hex  
- Venoshock  
- Shell Smash  
- Baneful Bunker  

Gyarados-Mega @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Knock Off  
- Rapid Spin  
- Crabhammer  
- U-turn  

Xerneas @ Safety Goggles  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Gentle Nature  
- Moonblast  
- Defog  
- U-turn  
- Milk Drink  

Arceus-Ghost @ Ghostium Z  
Ability: Normalize  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Quiver Dance  
- Boomburst  
- Moongeist Beam  
- Recover  

Shedinja @ Protective Pads  
Ability: Sturdy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Endeavor  
- Extreme Speed  
- Seismic Toss  
- Soak