Keldeo @ Leftovers  
Ability: Justified  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Calm Mind  
- Scald  
- Secret Sword  

Tyranitar-Mega @ Tyranitarite  
Ability: Sand Stream  
EVs: 248 HP / 104 Atk / 120 SpD / 36 Spe  
Adamant Nature  
- Stealth Rock  
- Crunch  
- Superpower  
- Pursuit  

Excadrill @ Leftovers  
Ability: Sand Rush  
EVs: 56 Atk / 200 SpD / 252 Spe  
Jolly Nature  
- Substitute  
- Rapid Spin  
- Earthquake  
- Iron Head  

Zapdos @ Leftovers  
Ability: Static  
EVs: 248 HP / 60 Def / 180 SpD / 20 Spe  
Calm Nature  
IVs: 0 Atk / 30 Def  
- Volt Switch  
- Roost  
- Hidden Power [Ice]  
- Heat Wave  

Serperior @ Chesto Berry  
Ability: Contrary  
EVs: 200 HP / 44 Def / 12 SpA / 252 Spe  
Timid Nature  
IVs: 1 Atk / 30 Def / 30 SpD / 30 Spe  
- Leaf Storm  
- Hidden Power [Rock]  
- Taunt  
- Rest  

Mew @ Leftovers  
Ability: Synchronize  
EVs: 252 HP / 240 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Roost  
- Thunder Wave  
- Seismic Toss