Rate my Gen 8 OU Sand Team (You can suggest anything if you want to)

Question

Hippowdon (F) @ Rocky Helmet
Ability: Sand Stream
EVs: 252 HP / 8 Atk / 248 Def
Impish Nature
- Earthquake
- Slack Off
- Stealth Rock
- Toxic

Corviknight (M) @ Leftovers
Ability: Mirror Armor
EVs: 248 HP / 4 Atk / 252 SpD / 4 Spe
Careful Nature
- Bulk Up
- Brave Bird
- Body Press
- Roost

Blissey (F) @ Heavy-Duty Boots
Ability: Natural Cure
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Seismic Toss
- Soft-Boiled
- Thunder Wave
- Teleport

Excadrill @ Leftovers
Ability: Sand Rush
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Earthquake
- Iron Head
- Swords Dance
- Rapid Spin

Tyranitar (F) @ Assault Vest
Ability: Sand Stream
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Stone Edge
- Crunch
- Ice Punch
- Earthquake

Dragapult (M) @ Choice Specs
Ability: Infiltrator
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Shadow Ball
- Draco Meteor
- U-turn
- Fire Blast

Comments

As the self proclaimed professor emeritus of sand teams, the only flaw I can find is Tyranitar. You don't need two sand setters with only one abuser. The best slot on this would be specs Lele because specs Lele is incredibly annoying to deal with and it prevents you from losing to random priorities

Also, go leftovers on Hippowdon. You're not hitting anyone significant with rocky helmet since Cinderace is banned