Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 208 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Whirlwind  

Marshadow @ Choice Scarf  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Poltergeist  
- Toxic  
- Pursuit  
- Close Combat  

Deoxys-Speed @ Focus Sash  
Ability: Pressure  
EVs: 248 HP / 132 Def / 128 Spe  
Timid Nature  
IVs: 0 Atk  
- Spikes  
- Stealth Rock  
- Taunt  
- Magic Coat  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 4 Atk / 252 SpA / 252 Spe  
Rash Nature  
- Sucker Punch  
- Oblivion Wing  
- Dark Pulse  
- Heat Wave  

Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Dragon Ascent  
- Extreme Speed  
- V-create  

Calyrex-Shadow @ Ghostium Z  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Substitute  
- Baton Pass  
- Nasty Plot