Rayquaza @ Life Orb  
Ability: Air Lock  
EVs: 252 Atk / 4 SpA / 252 Spe  
Hasty Nature  
- Swords Dance  
- Extreme Speed  
- Dragon Ascent  
- Fire Blast  

Arceus @ Silk Scarf  
Ability: Multitype  
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature  
- Swords Dance  
- Extreme Speed  
- Shadow Claw  
- Earthquake  

Dialga @ Choice Specs  
Ability: Pressure  
EVs: 88 HP / 252 SpA / 4 SpD / 164 Spe  
Modest Nature  
IVs: 0 Atk  
- Draco Meteor  
- Flash Cannon  
- Fire Blast  
- Thunder  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunder Wave  
- Hex  
- Draco Meteor  
- Defog  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Precipice Blades  
- Thunder Wave  
- Stealth Rock  
- Roar  

Kyogre @ Choice Scarf  
Ability: Drizzle  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Water Spout  
- Scald  
- Ice Beam  
- Thunder