Sylvita (Sylveon) (F) @ Leftovers  
Ability: Pixilate  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Hyper Voice  
- Wish  
- Protect  
- Heal Bell  

Steelito (Steelix-Mega) (M) @ Steelixite  
Ability: Sturdy  
EVs: 252 HP / 208 Atk / 48 SpD  
Brave Nature  
IVs: 0 Spe  
- Stealth Rock  
- Gyro Ball  
- Earthquake  
- Curse  

Suicunito (Suicune) @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 160 Def / 96 Spe  
Bold Nature  
- Calm Mind  
- Rest  
- Sleep Talk  
- Scald  

Latias (F) @ Dragonium Z  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Draco Meteor  
- Psyshock  
- Recover  

Nihilego @ Black Sludge  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Wave  
- Thunderbolt  
- Hidden Power [Ice]  
- Toxic Spikes  

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