Altaria @ Altarianite  
Ability: Cloud Nine  
EVs: 252 HP / 132 Def / 16 SpA / 92 SpD / 16 Spe  
Calm Nature  
IVs: 0 Atk  
- Cotton Guard  
- Roost  
- Hyper Voice  
- Fire Blast  

Dragonite @ Dragonium Z  
Ability: Multiscale  
EVs: 160 HP / 72 Atk / 104 SpD / 172 Spe  
Careful Nature  
- Outrage  
- Earthquake  
- Extreme Speed  
- Dragon Dance  

Naganadel @ Choice Specs  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Draco Meteor  
- Sludge Wave  
- Fire Blast  
- Uproar