Pokemon sandstorm team?

How will this team fare against the ou metagame

Hippowdon

Sand steam

Leftovers

Max Hp and defense

Careful

Slack off

Stealth rock

Roar

Earthquake

Excadrll

Sand rush

Ballon

Max attack and speed

Adamant

Swords dance

Earthquake

Rockslide

Rapid spin

Reuniclus

Magic guard

Life orb

Max sp attack and hp

Calm

Psychic

Recover

Calm mind

Focus blast

Ferrothorn

Iron barbs

Rocky helmet

Max sp defense and hp

Sassy

Power whip

Gyro ball

Spikes

Leech seed

Skarmory

Sturdy

Leftovers

Max defense and hp

Impish

Spikes

Brave bird

Roost

Whirlwind

Scizor

Technician

Choice band

Max hp and attack

Adamant

Bullet punch

Brick break

U turn

Pursuit

Basically hippowdon goes out sets up stealth rocks and tries to get as much damage as it can and switches to either excadrill to abuse sand rush and swords dance on the foes switch and proceeds to sweep otherwise reuniclus comes in to abuse magic guard with no life orb entry hazard or sandstorm damage and proceeds to calm mind on the switch and sweep skarmory fr spikes and physical wall and ferrothorn for sp defense pokemon don't dare use physical mves for fear of immediate 1/8 damage before ferrothorn even attacks! Lastly scizor is for a quick bullet punch revenge kill and for late game clean up

Tell me what you think