Giratina @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Haze  
- Slack Off  
- Spectral Thief  
- Core Enforcer  

Ho-Oh @ Aguav Berry  
Ability: Unaware  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- V-create  
- Spirit Shackle  
- Shore Up  

Diancie-Mega @ Normalium Z  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Boomburst  
- Tail Glow  
- Earth Power  
- Extreme Speed  

Chansey (F) @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Whirlwind  
- Trick  
- Defog  

Kyogre-Primal @ Custap Berry  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Endure  
- Spectral Thief  
- Shore Up  
- Scald  

Xerneas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Glare  
- Spikes  
- Moonblast  
- Rapid Spin