SS OU Just checking if my team is good or not and what i can change / add in it

[Hazardous Scyther]

Bird guy (Tapu Koko) @ Light Clay
Ability: Electric Surge
EVs: 248 HP / 8 SpD / 252 Spe
Jolly Nature
- Light Screen
- Reflect
- Roar
- U-turn
Tapu koko is mostly used a screens setter for fast bulky support so i can provide extra defenses for my other sweepers

piss cat (Zeraora) @ Heavy-Duty Boots
Ability: Volt Absorb
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Bulk Up
- Plasma Fists
- Knock Off
- Close Combat
Zeraora is my main sweeper bulk up + screens is very good to tank hits and spam knock off cc and plasma fist to obliterate almost everything

tiger god (Landorus-Therian) (M) @ Focus Sash
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Stealth Rock
- Explosion
- Rock Tomb
- Defog
just a s*icide lead lando to prevent other rocks and make sure i get my own without getting them defoged away

noble (Cobalion) @ Air Balloon
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Close Combat
- Iron Head
- Megahorn
- Stone Edge
This is just here to be a casual attacker and switch into bulky mons to punish them in case they use earthquake or a move cobalion resists

diva (Hatterene) (F) @ Leftovers
Ability: Magic Bounce
EVs: 252 HP / 4 SpA / 252 SpD
Sassy Nature
IVs: 0 Atk
- Trick Room
- Calm Mind
- Psychic
- Dazzling Gleam
I just put this in the team to prevent sticky web / toxic spikes so my sweepers are not disrupted by them.

scary (Corviknight) @ Wacan Berry
Ability: Pressure
EVs: 252 HP / 168 Def / 88 SpD
Impish Nature
- Body Press
- U-turn
- Defog
- Roost
Last but not least corviknight, just to deal damage and kill opposing ferrothorns, but the reason i have wacan berry is so i can take a hit form magnezone and body press for medium damage