OU rates

Can someone rate my pokemon team...I am open to new ideas for items, pokemon, moves,...etc.
Heres my team

Jolteon @ Lum Berry
Rain Dance
Thunder
Dig
Rest
Ability: Volt Absorb

Infernape @ Power Herb
Flamethrower
Close Combat
Calm Mind
SolarBeam
Ability: Blaze

Ferrothorn @ Rocky Helmet
Iron Defense
Spikes
Leech Seed
Power Whip
Ability: Iron Barbs

Gengar @ Focus Sash
Hypnosis
Dark Pulse
Destiny Bond
Taunt
Ability: Levitate

Dragonite @ Life Orb
Fly
Aqua Tail
Dragon Dance
Dragon Rush
Ability: Inner Focus

Cloyster @ Leftovers
Icycl Spear
Toxic Spikes
Rapid Spin
Shell Smash
Ability: Skill Link

Thx in advance.

Jolteon: Not worth it to run Rest, but if you do, don't use the lum berry. Go for a berry that only awakens from sleep, because not waking up means fainting. Dig is a poor choice of move on a Pokemon with such high special attack and such low attack. Try Shadow Ball. What's the point of Rain Dance? Even setting up for it allows Jolteon to loose by having a powerful Ground Type come in and destroy him. It also doesn't benefit the rest of the team.

Infernape: Has good setup. Instead of Solar Beam you could go for Thunder Punch. But that's just me.

Ferrothorn: Just a great setup again.

Gengar: I see what you're gonna do there. Great idea.

Dragonite: I'd get rid of Fly for Earthquake or something that can do better damage and doesn't need a turn to set up. Life Orb could be replaced by Leftovers. Dragon Rush can be replaced for Dragon Claw.

Cloyster: Depending on the wrought you want to go with Cloyster, the set is good or bad. If you want to use it as a spiker, go ahead with Leftovers and stick out. If you are going to run Shell Smash. Get a Focus Sash or a White Herb. Personally, I use the Focus sash.

In game, it's fine. I was rating from an online OU standpoint. I have a lot of experience with online battles and like to play online on six vs. six battles.