Mamoswine

Stakataka @ Rockium Z
Ability: Beast Boost
EVs: 252 HP / 252 Atk
Lonely Nature
IVs: 15 Def / 0 Spe
- Trick Room
- Gyro Ball
- Stone Edge
- Superpower

Ferrothorn @ Choice Band
Ability: Iron Barbs
EVs: 252 HP / 252 Atk / 4 SpD
Brave Nature
IVs: 0 Spe
- Gyro Ball
- Power Whip
- Knock Off
- Shadow Claw

Cresselia @ Mental Herb
Ability: Levitate
EVs: 248 HP / 252 Def / 8 SpD
Relaxed Nature
IVs: 0 Atk / 0 Spe
- Trick Room
- Ice Beam
- Moonlight
- Lunar Dance

Mamoswine @ Life Orb
Ability: Thick Fat
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Stealth Rock
- Ice Shard
- Earthquake
- Icicle Crash

Porygon2 @ Eviolite
Ability: Trace
EVs: 252 HP / 120 Def / 136 SpD
Calm Nature
IVs: 0 Atk
- Trick Room
- Toxic
- Ice Beam
- Hidden Power [Fire]

Blacephalon @ Choice Scarf
Ability: Beast Boost
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Flamethrower
- Fire Blast
- Shadow Ball
- Trick