Tentacruel @ Black Sludge  
Ability: Liquid Ooze  
EVs: 252 HP / 240 SpD / 16 Spe  
Calm Nature  
IVs: 0 Atk  
- Rapid Spin  
- Toxic Spikes  
- Toxic  
- Mirror Coat  

Ho-Oh @ Choice Band  
Ability: Regenerator  
EVs: 248 HP / 196 Atk / 52 SpD / 12 Spe  
Adamant Nature  
- Brave Bird  
- Sacred Fire  
- Earthquake  
- Sleep Talk  

Salamence-Mega @ Salamencite  
Ability: Aerilate  
EVs: 248 HP / 124 Atk / 136 Spe  
Adamant Nature  
- Double-Edge  
- Roost  
- Refresh  
- Dragon Dance  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Earth Power  
- Stealth Rock  
- Fire Blast  
- Thunder  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 184 HP / 28 Def / 252 SpA / 44 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Thunder  
- Focus Blast  

Klefki @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Spikes  
- Thunder Wave  
- Toxic  
- Play Rough