SM OU i just got back into pokemon battling but i need some help pls what does my team need

[Double Tap]

Kommo-o @ Leftovers
Ability: Bulletproof
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Toxic
- Drain Punch
- Stealth Rock
- Protect

Muk-Alola @ Assault Vest
Ability: Poison Touch
Shiny: Yes
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Explosion
- Knock Off
- Poison Jab
- Shadow Sneak

Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 248 HP / 252 Def / 8 SpD
Bold Nature
IVs: 0 Atk
- Defog
- Hydro Pump
- Will-O-Wisp
- Volt Switch

Sableye (M) @ Sablenite
Ability: Prankster
EVs: 248 HP / 8 Def / 252 SpD
Careful Nature
- Knock Off
- Will-O-Wisp
- Recover
- Protect

Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 120 HP / 148 Atk / 48 Def / 192 Spe
Jolly Nature
- Earthquake
- Hidden Power [Ice]
- Rock Slide
- U-turn

Buzzwole @ Leftovers
Ability: Beast Boost
EVs: 248 HP / 184 Def / 76 SpD
Impish Nature
- Hammer Arm
- Leech Life
- Roost
- Earthquake

 

[Snowy]

Welcome to Smogon! I'm locking your RMT for the time being as the forum rules require that you provide in-depth descriptions for each Pokemon to explain their roles. Please read the rules carefully and take a look at Team Showcase to see the level of detail we require. PM me with updated descriptions and I'll be happy to unlock this.