This team has tons of slashes ; you can put Defog on Lando-T and give Torn-T u-turn, roost on koko, protect on ferro, t-spikes on pex...pick what suits you best and have fun :]

Alakazam-Mega @ Alakazite
Ability: Magic Guard
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Focus Blast
- Recover
- Calm Mind

Tapu Koko @ Tapunium Z
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 30 Atk
- Nature's Madness
- Thunderbolt
- Hidden Power [Ice]
- U-turn

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 92 Def / 164 SpD
Sassy Nature
IVs: 0 Spe
- Stealth Rock
- Leech Seed
- Power Whip
- Gyro Ball

Tornadus-Therian @ Rocky Helmet
Ability: Regenerator
EVs: 252 HP / 4 Def / 252 Spe
Timid Nature
- Hurricane
- Knock Off
- Taunt
- Defog

Toxapex @ Shed Shell
Ability: Regenerator
EVs: 248 HP / 8 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Scald
- Haze
- Recover
- Toxic

Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 80 HP / 148 Atk / 84 Def / 196 Spe
Naive Nature
- Earthquake
- U-turn
- Hidden Power [Ice]
- Explosion