Ditto @ Choice Scarf  
Ability: Imposter  
Shiny: Yes  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
IVs: 0 Atk  
- Transform  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 132 HP / 244 Atk / 28 SpD / 104 Spe  
Jolly Nature  
- Stealth Rock  
- Swords Dance  
- Stone Edge/Fire punch 
- Precipice Blades  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 252 HP / 156 Def / 100 Spe  
Jolly Nature  
IVs: 0 Atk  
- Defog  
- Judgment  
- Ice Beam  
- Recover  

Yveltal @ Black Glasses  
Ability: Dark Aura  
EVs: 248 HP / 176 Def / 84 Spe  
Jolly Nature  
- Sucker Punch  
- Foul Play  
- Roost  
- Toxic  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Spikes  
- Leech Seed  
- Toxic/Protect
- Bullet Seed  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Photon Geyser  
- Earthquake  
- Stone Edge