Needs a test

Magearna @ Fightinium Z
Ability: Soul-Heart
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Shift Gear
- Focus Blast
- Thunderbolt
- Ice Beam

Greninja @ Life Orb
Ability: Protean
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
IVs: 0 Atk
- Spikes
- Hidden Power [Fire]
- Ice Beam
- Taunt

Zygarde @ Choice Band
Ability: Aura Break
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Thousand Arrows
- Outrage
- Extreme Speed
- Toxic

Tangrowth @ Assault Vest
Ability: Regenerator
EVs: 252 HP / 4 SpA / 252 SpD
Sassy Nature
- Giga Drain
- Hidden Power [Ice]
- Knock Off
- Rock Slide

Landorus-Therian @ Earth Plate
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Gravity
- Swords Dance
- Substitute
- Earthquake

Nihilego @ Choice Scarf
Ability: Beast Boost
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Power Gem
- Sludge Wave
- Stealth Rock
- Hidden Power [Fire]