I made a Ground monotype team (2 exceptions allowed) and tried building it around sand synergy and overall consistency. I’d appreciate some competitive feedback/expertise on possible weaknesses, improvements, matchups, etc.

Mega Garchomp

Ability: Sand Veil
Nature: Jolly
Item: Garchompite

Moves:

• Earthquake
• Dragon Claw
• Slash
• Sand Tomb

Hippowdon

Ability: Sand Stream
Nature: Impish
Item: Leftovers

Moves:

• Earthquake
• Crunch
• Yawn
• Sandstorm

Excadrill

Ability: Sand Rush
Nature: Jolly
Item: Life Orb

Moves:

• Earthquake
• Rock Slide
• Slash
• Dig

Gastrodon

Ability: Storm Drain
Nature: Calm
Item: Leftovers

Moves:

• Earth Power
• Recover
• Muddy Water
• Body Slam

Mamoswine

Ability: Thick Fat
Nature: Jolly
Item: Choice Band

Moves:

• Ice Shard
• Icicle Crash
• Earthquake
• Mist

Swampert

Ability: Torrent
Nature: Relaxed
Item: Leftovers

Moves:

• Earthquake
• Surf
• Mud Shot
• Protect

Main idea is:

• Hippowdon sets sand
• Excadrill abuses Sand Rush
• Mega Garchomp cleans late game
• Gastrodon absorbs Water attacks
• Mamoswine provides Ice pressure and priority
• Swampert acts as a secondary tank/pivot

Would love to hear how good/bad this actually is from people with more competitive experience.