Steelix-Mega @ Steelixite  
Ability: Sturdy  
EVs: 248 HP / 16 Def / 244 SpD  
Impish Nature  
- Stealth Rock  
- Heavy Slam  
- Earthquake  
- Toxic  

Nihilego @ Choice Specs  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Power Gem  
- Sludge Wave  
- Grass Knot  
- Thunderbolt  

Hydreigon @ Dragonium Z  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Dark Pulse  
- Defog  
- Roost  

Azumarill @ Leftovers  
Ability: Sap Sipper  
EVs: 240 HP / 252 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Whirlpool  
- Perish Song  
- Protect  
- Rest  

Serperior @ Miracle Seed  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Hidden Power [Fire]  
- Taunt  
- Synthesis  

Infernape @ Choice Scarf  
Ability: Blaze  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Flare Blitz  
- Close Combat  
- U-turn  
- Gunk Shot