Hippowdon @ Smooth Rock  
Ability: Sand Stream  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Stone Edge  
- Toxic  
- Whirlwind  
- Slack Off
Excadrill @ Choice Band  
Ability: Sand Rush  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Earthquake  
- Iron Head  
- Poison Jab  
- Rock Slide
Seismitoad @ Rindo Berry  
Ability: Swift Swim  
EVs: 252 HP / 68 Def / 188 SpD  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Scald  
- Earth Power  
- Toxic
Flygon @ Choice Scarf  
Ability: Levitate  
EVs: 8 HP / 252 Atk / 8 Def / 240 Spe  
Adamant Nature  
- U-turn  
- First Impression  
- Fire Punch  
- Earthquake
Golurk @ Eject Pack  
Ability: Iron Fist  
EVs: 252 HP / 248 Def / 8 SpD  
Impish Nature  
- Gravity  
- Ice Punch  
- Earthquake  
- Superpower
Mamoswine @ Life Orb  
Ability: Thick Fat  
EVs: 160 HP / 252 Atk / 96 Spe  
Adamant Nature  
- Earthquake  
- Ice Shard  
- Icicle Crash  
- Superpower