Metagross-Mega @ Metagrossite  
Ability: Clear Body  
Level: 50  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Iron Head  
- Zen Headbutt  
- Substitute  
- Protect  

Hydreigon @ Life Orb  
Ability: Levitate  
Level: 50  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Draco Meteor  
- Dark Pulse  
- Earth Power  
- Protect  

Terrakion @ Lum Berry  
Ability: Justified  
Level: 50  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Rock Slide  
- Close Combat  
- Protect  
- Quick Guard  

Jellicent (M) @ Leftovers  
Ability: Cursed Body  
Level: 50  
EVs: 252 HP / 140 Def / 116 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Scald  
- Recover  
- Will-O-Wisp  
- Taunt  

Thundurus @ Sitrus Berry  
Ability: Prankster  
Level: 50  
EVs: 188 HP / 192 Def / 92 SpD / 36 Spe  
Bold Nature  
IVs: 0 Atk / 30 Def  
- Thunderbolt  
- Hidden Power [Ice]  
- Swagger  
- Thunder Wave  

Landorus-Therian (M) @ Choice Scarf  
Ability: Intimidate  
Level: 50
EVs: 164 HP / 124 Atk / 12 Def / 28 SpD / 180 Spe  
Adamant Nature  
- Earthquake  
- U-turn  
- Rock Slide  
- Superpower