Ho-Oh @ Leftovers  
Ability: Regenerator  
Shiny: Yes  
EVs: 252 HP / 76 Def / 180 Spe  
Impish Nature  
- Toxic  
- Sacred Fire  
- Recover  
- Defog  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 252 Atk / 36 SpD / 220 Spe  
Adamant Nature  
- Sunsteel Strike  
- Earthquake  
- Swords Dance  
- Rock Polish  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
Shiny: Yes  
EVs: 132 HP / 252 Def / 124 Spe  
Bold Nature  
IVs: 0 Atk  
- Defog  
- Judgment  
- Ice Beam  
- Recover  

Groudon-Primal @ Red Orb  
Ability: Drought  
Shiny: Yes  
EVs: 252 HP / 56 Def / 200 SpD  
Relaxed Nature  
- Stealth Rock  
- Precipice Blades  
- Fire Punch  
- Toxic  

Medicham-Mega (M) @ Medichamite  
Ability: Pure Power  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- High Jump Kick  
- Fake Out  
- Zen Headbutt  
- Ice Punch  

Rayquaza @ Focus Sash  
Ability: Air Lock  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Ascent  
- V-create  
- Extreme Speed  
- Waterfall