stakataka is a monster

Tyranitar @ Assault Vest
Ability: Sand Stream
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Earthquake
- Pursuit
- Rock Slide
- Crunch

Diancie @ Diancite
Ability: Clear Body
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Diamond Storm
- Moonblast
- Earth Power
- Substitute

Nihilego @ Choice Scarf
Ability: Beast Boost
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Power Gem
- Sludge Wave
- Grass Knot
- Thunderbolt

Terrakion @ Choice Band
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Close Combat
- Stone Edge
- Iron Head

Shuckle @ Mental Herb
Ability: Sturdy
EVs: 248 HP / 8 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Sticky Web
- Stealth Rock
- Toxic
- Infestation

Stakataka @ Rockium Z
Ability: Beast Boost
EVs: 252 HP / 252 Atk / 4 SpD
Lonely Nature
IVs: 14 Def
- Trick Room
- Rock Slide
- Iron Head
- Earthquake