Hydreigon @ Life Orb  
Ability: Dragon's Maw  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Nasty Plot  
- Draco Meteor  
- Flash Cannon / Shock Wave / Dark Pulse  
- Roost

Hydreigon @ Life Orb  
Ability: Adaptability / Mega Launcher  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Draco Meteor  
- Dark Pulse  
- Roost / Earth Power

Hydreigon @ Life Orb  
Ability: Galvanize  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Hyper Voice  
- Dark Pulse  
- Roost