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

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 132 Def / 124 SpD  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Thunder Wave  
- Moonlight  

Yveltal @ Black Glasses  
Ability: Dark Aura  
EVs: 248 HP / 208 Atk / 52 SpD  
Adamant Nature  
- Knock Off  
- Sucker Punch  
- Roost  
- Defog  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 240 HP / 176 SpD / 92 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Mystical Fire  
- Recover  
- Toxic Spikes  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 236 Atk / 20 Spe  
Adamant Nature  
- Precipice Blades  
- Rock Slide  
- Swords Dance  
- Thunder Wave  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 72 HP / 144 Def / 248 SpA / 44 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Psyshock  
- Aromatherapy