Crystal Storm

Marowak-Alola @ Thick Club
Ability: Lightning Rod
EVs: 128 HP / 252 Atk / 128 Spe
Adamant Nature
- Shadow Bone
- Stealth Rock
- Will-O-Wisp
- Fire Punch

Ninetales-Alola @ Light Clay
Ability: Snow Warning
EVs: 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Hidden Power [Fire]
- Aurora Veil
- Freeze-Dry
- Moonblast

Latios @ Choice Scarf
Ability: Levitate
EVs: 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Draco Meteor
- Psyshock
- Defog
- Trick

Landorus-Therian @ Rockium Z
Ability: Intimidate
EVs: 252 Atk / 252 Spe
Jolly Nature
- Swords Dance
- Stone Edge
- Earthquake
- Rock Polish

Magearna @ Metronome
Ability: Soul-Heart
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Aura Sphere
- Thunderbolt
- Shift Gear
- Ice Beam

Tyranitar-Mega @ Tyranitarite
Ability: Sand Stream
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Dance
- Stone Edge
- Fire Punch
- Ice Punch