Okay,this is the singles team I've made and I'm still only familiar with doubles synergy so forgive me if this still looks more like six individuals and not a team but I tried my best,And I haven't decided on sum of the items yet so please recomend some,here it is:

Claydol:Modest,31 sp atck IVs
252 sp. Atck,100 HP,100 defense,the rest in sp Defense

Icebeam/psychic
Rapid spin
Stealth rock
Earth power

Claydol lead migt seem strange,but I wanted something that could actually take a hit for a change and the only lead it fears is Weavile,if the opponent doesn't have him he can fill his niche as Spinner and stealth rock pokemon,as well as near perfect coverage with ice beam and earth power,and 262 sp atck isn't too bad. I'm still stuck between pshychic and ice beam tho,I really wanna hit gengar but coverage is nice too,what do you think?*
Plus,people usually expect Bronzong instead,and carry flamethrower on aerodactyl insted of,say,Crunch. It's not very expected,point made.

Umbreon: Impish
200 HP,200 defense,the rest in sp. Defense
Lum berry
Moonlight
Taunt/Toxic
Baton pass
Mean look

At first glance,this looks ridiculous,but the main role of this Umbreon is to switch in on a status move and reflect it back at the opponent with the berry and synchronize,then if it's sleep,burn,or poison it can mean look and stall it,or it can baton pass to something else that can setup in it's face. Right now I have moonlight but Toxic works too,and taunt is so you don't get taunted.

Gyarados Lonely 25 attack IV
252 attack 248 speed 8 defense
Ice fang
waterfall
dragon dance
earthquake

Bread and butter Gyarados set. I dun really like using pokemon EVERYBODY uses tho so I might replace with Feraligatr later. Trick is to Baton pass mean look to it and make sure it's up against something that's crippled or has no counter to it(Spore Breloom is a sucker for my Umbreon)

Also,Once Umbreom sends Gyarados,say,a hypnosis milotic (now asleep) it can set up in it's face. If any of you have ever dealt with a gyarados you probably know that if it gets more than two DDs in you might as well give in XD
** * *

Gengar Bashful 252 Sp attack 252 Speed 4 Attack
Life orb

Explosion
Shadow ball
Icy wind
Thunderbolt

please don't nag about the nature,he is still usable and packs a punch with life orb. This is really just a last resort poke for stuff that Umbreon cripples but needs to be taken out without risk and fast,that's what Gengar is for. Shadow ball= STAB, icy wind takes care of dragons,Thunderbolt is good against Togekiss and Skarmory and If you don't feel confident you will ohko something threatening,Explosion is there for you*

Togekiss Modest; 252 sp attack 200 defense,everything else in sp. Defense
leftovers or shell bell when I get one

Air slash
Fire blast
Water pulse
Thunder wave

Classic paraslaah togekiss with a twist,I really wanted to take advantage of Serene Grace by adding fire blast and water pulse,they have great coverage with air slash and their secondary effects are sometimes the diffrence between losing and winning. Probably my favorite.*

Machamp Bashful 252 attack 112 HP 112 Defense,the rest in sp defense

Stone edge
Bulk up
payback
Dynamicpunch

once,again,no nagging about the nature,I will breed an Adamant one later. This Poke functions similarly to Gyarados,having Umbreon trap something it can set up on and boom! Start firing Dynamicpunch! The other moves are for coverage

I am open to critisism and suggestions,just don't explode on me if this team is a suicide march in OU play. 1-10 ratings are appreciated.

Added after 1 2 minutes:

Just learned that synch don't work with sleep or freeze,sorry for the misconceptions

Added after 9 minutes:

But Thunder wave dragonite and will o wispers still fall to my umb

An offensive Claydol lead seems a bit risky to me. Politoed, Ninetales, Abomasnow, and Genesect leads will all hit your Claydol very hard. It could work due to the novelty of it, but be aware of the common leads that carry water, grass, or ice type moves.
For you move, I say go with ice beam for more coverage.

Moonlight is risky with all the weather running around OU right now. Umbreon is a bit slow so I don't think taunt is going to be particularly useful, especially with the introduction of priority taunt users. I would suggest wish and protect/toxic in place of those two moves.
If you are scared of getting taunted, you could use a mental herb as your item.
For the EVs, I suggest a 252HP/128Def/128Spd spread.

Moveset looks good. You should really try to get an adamant or jolly nature though. For the EVs I recommend maxing out speed, leaving 4 in defense. Leftovers would work nicely here.

Don't use exposion, put Focus Blast there instead. If you have HP Ice, it would do more damage than Icy Wind, if not that you can use Energy Ball and still have a moveset with phenomenal coverage.

I know you said not to nag, but a Modest or Timid nature would be so much better. If you are going to go to all the trouble of making a team, why not make it the best it can be?

The moveset looks good. Maybe consider using Roost over Thunder Wave if you want a reliable means of recovery. If you use end up using roost, max out the HP EVs and split the rest among Def and SpD

Moveset looks fine. If you end up using Bulk Up, you might want to invest heavily in HP and SpD EVs. Again, leftovers would work nicely here.


Overall I think you team has good type-coverage. Some threats off the top of my head to look out for are Garchomp and Genesect. Experiment with ways to deal with them and you will be fine.

All of this teams problems can be fixed by including an Afro Bull, Boner Bear, Wobbufett, Probopass, Pinsir and Delibird.
Just throwing that out there.

Your suggestions are great,but this is a gen 4 team. Just putting that out there

Added after 2 minutes:

Plus,this is an OU team,so no garchomp

Added after 7 minutes:

I might breed a wish umb but I won't change the lum berry cuz the whole point of him is to reflect statuses with it

HAHA sorry, I should have realized that. I am so used to Gen 5 now that it didn't cross my mind. Mental Herb works different in Gen 5 anyway, so it would basically be useless for your Gen 4 Umbreon. Also, Chomp is OU in Gen 5, but as you said, it is banned for Gen 4, so you won't have to worry about it for Gen 4.

Just curious why are you making a Gen 4 team when most people have moved on to Gen 5?

Also, where do you plan on using this team?