Latias-Mega (F) @ Latiasite  
Ability: Levitate  
EVs: 252 HP / 120 SpD / 136 Spe  
Timid Nature  
IVs: 0 Atk  
- toxic
- Defog  
- Roost  
- Ice Beam  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Glare  
- Coil  
- Thousand Arrows  
- Rest  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 56 Def / 200 SpD  
Impish Nature  
- Toxic  
- Precipice Blades  
- Dragon Tail  
- Fire Punch  

Gliscor @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 240 Def / 16 Spe  
Impish Nature  
- Stealth Rock  
- U-turn  
- Roost  
- Earthquake  

Arceus-Poison @ Poisonium Z  
Ability: Multitype  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Recover  
- Swords Dance  
- Poison Jab  
- Earthquake  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Calm Mind  
- Origin Pulse  
- Ice Beam  
- Water Spout