Steelix-Mega @ Steelixite  
Ability: Sheer Force  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
IVs: 0 Atk  
- Fissure  
- Body Press  
- Iron Defense  
- Rest  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 252 SpD / 8 Spe  
Careful Nature  
- Curse  
- Brave Bird  
- Toxic  
- Protect  

Necrozma-Dusk-Mane @ Maranga Berry  
Ability: Prism Armor  
EVs: 248 HP / 252 SpD / 8 Spe  
Careful Nature  
- Sunsteel Strike  
- Knock Off  
- Stealth Rock  
- Morning Sun  

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

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Ice Beam  
- Refresh  
- Recover  

Giratina @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Defog  
- Toxic  
- Roar  
- Rest