Manectric-Mega @ Leftovers  
Ability: Wonder Guard  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Baton Pass  
- Steam Eruption  
- Taunt  
- Substitute  

Audino-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Wish  
- King's Shield  
- Defog  
- Baton Pass  

Aerodactyl-Mega @ Choice Band  
Ability: Shadow Tag  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Ascent  
- Diamond Storm  
- Sacred Fire  
- Trick  

Gengar-Mega @ Spooky Plate  
Ability: Mold Breaker  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Spore / Sludge Wave
- Shell Smash
- Judgment
- Secret Sword / Sludge Wave

Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Encore  
- Destiny Bond  
- Curse  
- Roost  

Yveltal @ Leftovers  
Ability: Magic Bounce  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
- Knock Off  
- Recover  
- Aromatherapy  
- Baton Pass