Kyogre @ Choice Specs  
Ability: Drizzle  
EVs: 68 HP / 252 SpA / 188 Spe  
Modest Nature  
IVs: 0 Atk  
- Thunder  
- Water Spout  
- Origin Pulse  
- Ice Beam  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 57 Def / 200 SpD  
Relaxed Nature  
- Stealth Rock  
- Precipice Blades  
- Toxic  
- Overheat  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Power Whip  
- Spikes  
- Leech Seed  
- Gyro Ball  

Diancie-Mega @ Diancite  
Ability: Clear Body  
EVs: 24 Atk / 252 SpA / 232 Spe  
Naive Nature  
- Moonblast  
- Diamond Storm  
- Earth Power  
- Heal Bell  

Yveltal @ Choice Scarf  
Ability: Dark Aura  
Shiny: Yes  
EVs: 4 Atk / 252 SpA / 252 Spe  
Modest Nature  
- Oblivion Wing  
- Dark Pulse  
- U-turn  
- Foul Play  

Arceus-Ground @ Groundium Z  
Ability: Multitype  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Swords Dance  
- Earthquake  
- Stone Edge  
- Recover