Showdown : OU 1800 elo triple choice

Zygarde @ Choice Band
Ability: Aura Break
EVs: 252 Atk / 252 Spe
Jolly Nature
- Thousand Arrows
- Outrage
- Extreme Speed
- Stone Edge

Gengar @ Choice Scarf
Ability: Cursed Body
EVs: 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Trick
- Thunderbolt
- Sludge Bomb
- Shadow Ball

Tapu Bulu @ Choice Scarf
Ability: Grassy Surge
EVs: 252 Atk / 252 Spe
Adamant Nature
- Wood Hammer
- Horn Leech
- Stone Edge
- Superpower

Landorus-Therian @ Soft Sand
Ability: Intimidate
EVs: 252 Atk / 252 Spe
Jolly Nature
- Swords Dance
- Earthquake
- Stone Edge
- Hidden Power [Ice]

Magearna @ Fairium Z
Ability: Soul-Heart
EVs: 252 HP / 4 Def / 252 SpA
Quiet Nature
- Trick Room
- Fleur Cannon
- Flash Cannon
- Focus Blast

Nihilego @ Focus Sash
Ability: Beast Boost
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Stealth Rock
- Power Gem
- Sludge Wave
- Hidden Power [Ice]