Cresselia @ Fire Gem  
Ability: Levitate  
EVs: 220 HP / 76 Def / 136 SpA / 76 SpD  
Calm Nature  
IVs: 2 Atk / 30 SpA / 30 Spe  
- Hidden Power [Fire]  
- Helping Hand  
- Ice Beam  
- Psyshock  

Thundurus @ Flying Gem  
Ability: Prankster  
EVs: 40 HP / 48 Def / 128 SpA / 104 SpD / 188 Spe  
Modest Nature  
IVs: 30 HP / 2 Atk / 30 Def / 30 SpA / 30 SpD  
- Thunderbolt  
- Hidden Power [Flying]  
- Thunder Wave  
- Substitute  

Latios @ Dragon Gem  
Ability: Levitate  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Energy Ball  
- Psyshock  
- Protect  

Hitmontop @ Fighting Gem  
Ability: Intimidate  
EVs: 252 HP / 252 Atk / 4 Spe  
Adamant Nature  
- Fake Out  
- Close Combat  
- Detect  
- Stone Edge  

Metagross @ Choice Band  
Ability: Clear Body  
EVs: 116 HP / 252 Atk / 4 Def / 4 SpD / 132 Spe  
Adamant Nature  
- Ice Punch  
- Earthquake  
- Meteor Mash  
- Bullet Punch  

Tyranitar (F) @ Focus Sash  
Ability: Sand Stream  
EVs: 44 HP / 252 Atk / 212 Spe  
Adamant Nature  
- Low Kick  
- Rock Slide  
- Avalanche  
- Protect