Deoxys-Speed @ Leftovers  
Ability: Wonder Guard  
EVs: 248 HP / 8 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Gastro Acid  
- Taunt  
- Roost  
- Baton Pass  

Deoxys-Speed @ Focus Sash  
Ability: No Guard  
EVs: 248 HP / 8 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sheer Cold  
- Sing  
- Gastro Acid  
- Stealth Rock  

Venusaur-Mega @ Black Sludge  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Spore  
- Substitute  
- Encore  
- Baton Pass  

Groudon-Primal @ Earth Plate  
Ability: Turboblaze  
EVs: 200 Atk / 252 SpA / 56 Spe  
Naive Nature  
- Shell Smash  
- V-create  
- Judgment  
- Bolt Strike  

Diancie-Mega @ Life Orb  
Ability: Magic Guard  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Head Smash  
- Light of Ruin  
- High Jump Kick  
- Volt Tackle  

Sableye-Mega @ Sablenite  
Ability: Wonder Guard  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Toxic  
- Soft-Boiled  
- Parting Shot  
- Defog