Roserade @ Focus Sash
Ability: Technician
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Sleep Powder
- Sludge Bomb
- Hidden Power [Ice]
- Spikes

Pinsir-Mega @ Pinsirite
Ability: Aerilate
Happiness: 0
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Frustration
- Earthquake
- Quick Attack
- Swords Dance

Greninja (M) @ Choice Scarf
Ability: Protean
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- U-turn
- Extrasensory
- Rock Slide
- Hydro Pump

Zygarde @ Sitrus Berry
Ability: Aura Break
EVs: 188 HP / 140 Atk / 24 Def / 8 SpD / 148 Spe
Adamant Nature
- Thousand Arrows
- Substitute
- Coil
- Extreme Speed

Kartana @ Fightinium Z
Ability: Beast Boost
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
IVs: 19 Atk
- Leaf Blade
- Sacred Sword
- Smart Strike
- Swords Dance

Landorus-Therian @ Yache Berry
Ability: Intimidate
Shiny: Yes
EVs: 212 HP / 44 Atk / 88 Def / 28 SpD / 136 Spe
Impish Nature
- Stealth Rock
- Earthquake
- Hidden Power [Ice]
- U-turn

HO Team. Sack, setup, sweep.
How to use (wall of text): https://pastebin.com/2nquuf8a
Replay of usage: http://replay.pokemonshowdown.com/gen7ou-610447265

Updated Version 8/1/2017 6:26pm est
Changes: Toxic Spikes Gren > Extrasensory. Can change as you please.
Lando-T speed to 252 to outspeed max speed timid Magearna, reduced attack stat to compensate. Magearna gives this team a lot of trouble after one Shift Gear which is why Lando-T had Yache to revenge kill incase it didn't use SG but Ice beam instead to guarantee outspeed   a timid max speed Magearna so I decided to change it. This means Lando-T will have a harder time breaking walls such as Clefable-Unaware, Def Scizor but it already had that problem so it's fine right. Speed can also be set to 263 to outspeed Bisharp if you find it a threat like Zyg.