Krookodile @ Wiki Berry  
Ability: Intimidate  
EVs: 252 Atk / 96 SpA / 160 Spe  
Naive Nature  
- Knock Off  
- Earthquake  
- Stealth Rock  
- Grass Knot  

Volcanion @ Waterium Z  
Ability: Water Absorb  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Fire Blast  
- Steam Eruption  
- Earth Power  
- Flame Charge  

Hydreigon @ Choice Specs  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Dark Pulse  
- Draco Meteor  
- Fire Blast  
- U-turn  

Hippowdon @ Expert Belt  
Ability: Sand Stream  
EVs: 252 HP / 252 Atk / 4 Spe  
Adamant Nature  
- Ice Fang  
- Fire Fang  
- Earthquake  
- Slack Off  

Altaria-Mega @ Altarianite  
Ability: Pixilate  
EVs: 32 HP / 252 Def / 88 SpA / 136 Spe  
Bold Nature  
IVs: 0 Atk  
- Hyper Voice  
- Roost  
- Ice Beam  
- Flamethrower  

Magneton @ Choice Specs  
Ability: Magnet Pull  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Flash Cannon  
- Hidden Power [Fire]  
- Thunderbolt  
- Volt Switch