Steelix-Mega @ Shed Shell  
Ability: Magic Bounce  
EVs: 252 HP / 172 Def / 84 SpD  
Impish Nature  
IVs: 30 Spe  
- Perish Song  
- Aromatherapy  
- Recover  
- Iron Head  

Audino-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Chatter  
- Recover  
- Defog  
- Magic Coat  

Giratina @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 4 Spe  
Bold Nature  
IVs: 0 Atk  
- Scald  
- King's Shield  
- Curse  
- Roost  

Blissey (F) @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 48 Def / 208 SpD  
Careful Nature  
- Recover  
- Transform  
- Knock Off  
- Stealth Rock  

Regigigas @ Leftovers  
Ability: Shadow Tag  
EVs: 248 HP / 252 Atk / 8 Spe  
Adamant Nature  
- Fake Out  
- Extreme Speed  
- Bullet Punch  
- Spikes  

Ho-Oh @ Toxic Orb  
Ability: Magic Guard  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
IVs: 30 Spe  
- Psycho Shift  
- Flare Blitz  
- Wood Hammer  
- Recover