Qwilfish @ Rocky Helmet  
Ability: Intimidate  
EVs: 252 HP / 112 Def / 144 Spe  
Bold Nature  
IVs: 0 Atk  
- Spikes  
- Taunt  
- Scald  
- Toxic  

Flygon @ Dragonium Z  
Ability: Levitate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Earthquake  
- Outrage  
- Substitute / Stone Edge  

Mismagius @ Colbur Berry  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Nasty Plot  
- Shadow Ball  
- Thunderbolt  

Rhyperior @ Lum Berry  
Ability: Solid Rock  
EVs: 248 HP / 16 Atk / 244 SpD  
Adamant Nature  
- Stealth Rock  
- Swords Dance  
- Earthquake  
- Stone Edge  

Shaymin @ Choice Scarf  
Ability: Natural Cure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Air Slash  
- Earth Power  
- Healing Wish  
- Seed Flare  

Escavalier @ Choice Band  
Ability: Overcoat  
EVs: 120 HP / 252 Atk / 4 SpD / 132 Spe  
Adamant Nature  
- Pursuit  
- Knock Off  
- Iron Head  
- Megahorn  

or

Doublade @ Eviolite  
Ability: No Guard  
EVs: 252 HP / 180 Atk / 76 SpD  
Adamant Nature  
- Shadow Sneak  
- Pursuit  
- Swords Dance  
- Sacred Sword