Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Hasty Nature  
- V-create  
- Dragon Ascent  
- Draco Meteor  
- Extreme Speed  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Hidden Power [Ice]  
- Eruption  
- Stone Edge  
- Precipice Blades  

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

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 200 Def / 60 SpD  
Impish Nature  
- Defog  
- Toxic  
- Whirlwind  
- Sacred Fire  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 248 HP / 132 Def / 128 SpD  
Impish Nature  
- Stealth Rock  
- Knock Off  
- Morning Sun  
- Sunsteel Strike  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Ice Beam  
- Recover  
- Refresh