Registeel @ Shed Shell  
Ability: Magic Bounce  
EVs: 248 HP / 20 Def / 240 SpD  
Sassy Nature  
IVs: 1 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 @ Griseous Orb  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 Spe  
Bold Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Encore  
- Curse  
- Roost  

Blissey (F) @ Shed Shell  
Ability: Wonder Guard  
EVs: 168 HP / 88 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- 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  

Yveltal @ Shed Shell  
Ability: Mold Breaker  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
IVs: 16 Spe  
- Pursuit  
- Beat Up  
- Toxic Spikes  
- Recover