For MetalGross <3

Hawlucha (M) @ Power Herb
Trait: Unburden
EVs: 4 HP / 252 Atk / 252 Spd
Adamant Nature (+Atk, -SAtk)
- Sky Attack
- Acrobatics
- High Jump Kick
- Swords Dance

Druddigon (M) @ Choice Band
Trait: Mold Breaker
EVs: 252 HP / 252 Atk / 4 SDef
Adamant Nature (+Atk, -SAtk)
- Outrage
- Earthquake
- Fire Punch
- Dragon Claw

Crawdaunt (F) @ Life Orb
Trait: Adaptability
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature (+Spd, -SAtk)
- Crabhammer
- Dragon Dance
- Crunch
- Return

Magmortar (F) @ Expert Belt
Trait: Vital Spirit
EVs: 4 HP / 252 SAtk / 252 Spd
Naive Nature (+Spd, -SDef)
- Fire Blast
- Thunderbolt
- Focus Blast
- Mach Punch

Rotom-F @ Choice Scarf
Trait: Levitate
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature (+Spd, -Atk)
- Blizzard
- Thunderbolt
- Volt Switch
- Trick

Serperior (M) @ Life Orb
Trait: Overgrow
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature (+Spd, -Atk)
- Calm Mind
- Substitute
- Giga Drain
- Hidden Power [Rock]