Stick your nose out.

[YOOMTAH]

Introduction:
Well, I want to try something too. So I made this team around Shell Break Cloyster, although it can be placed in a lot of roles...
Btw, this is going to be used for in-game and maybe competitive stuff. Don't think it's a big competitive thing because of the lay out or something.
Title is because of shells breaking your nose when you put your nose in. \o/ Anyway, let's begin.

First Look:

Team building process:
So, I wanted to try Shell Break Cloyster. First thing that popped up my mind was a setup/antilead:

Cloyster @ Life Orb | Skill Link
Adamant nature, 252 Atk, 160 HP, 96 SpDef
Shell Break | Icicle Spear | Rock Blast / Ice Shard | Rapid Spin / Ice Shard
I chose the standard EVs because they work.
And to my surprise, this lead works suprisingly well in the normal OU tier, it survives an Aerodactyl Stone Edge and OHKOs Azelf with Icicle Spear (wich has become 25 BP now). Just not that experienced to see what the major threats are, I think it might have problems with TrickScarf and bulky leads like Swampert, although that has to be tested.

Now I thought of a back-up for when things get dangerous for Cloyster wich should be mainly any Thunderbolt/Grass Knot and now I wanted to try my rediculous supporter: Emonga.

Emonga @ Focus Sash | Motor Drive
Jolly nature, ??? HP, ??? Atk, ??? Spe
Encore | U-turn | Taunt | Thunder Wave
Yeah, funny right? Well, it's not a joke tbh. Here are some possible examples:
Cloyster used Shell Break, opponent switched in dangerous Pokémon.
You switched in Emonga, opponent used Thunderbolt. (Motor Drive)
Emonga used Encore, opponent used Thunderbolt. (Or switches, what gives me a chance to go with Cloyster again)
Emonga used Thunder Wave, ~
--
Cloyster used Shell Break, opponent switched in dangerous Pokémon.
You switched in Emonga, opponent used Close Combat. (Focus Sash)
Emonga used Encore, opponent used Close Combat.
You switched in Shandera, ~
It does its job. I have no idea about his EVs though, well I do have an idea, but I can't make the calcs.
Now I look at it, Taunt doesn't do really something, but ah well.

Well, as you might have noticed in the examples, here comes Shandera:

Shandera @ Life Orb | Shadow Tag
Modest nature, 252 HP, 252 SpAtk, 4 SpDef
Substitute | Calm Mind | Shadow Ball | Flamethrower
I'm not creative with EVs, yet. As I said, I still need to test the whole thing.
I don't know if this Pokémon is banned already either... Anyway, you can guess how it works, so i'll go on with the next Pokémon.

Porygon-2 @ Evolution Item | Trace
Modest nature, 252 HP, 252 Def, 4 SpDef
Ice Beam | Thunderbolt | Recover | Toxic
This Pokémon has @#&^%@&^!%#& good defensive stats with this item.
I chose Porygon-2 because of this, and because it's a duck. Oh and the beautiful ability wich makes him able to stop Gyarados, Heatran and others may come in handy too. Like I said, I am uncreative with EVs.
And now, I am kinda uninspired for my next Pokémon too.

Doreida @ Leftovers | Own Tempo
Calm nature, 252 HP, 252 SpDef, 4 SpAtk
Substitute | Butterfly Dance | Petal Dance | Aromatherapy / Teeter Dance (omfg i luv this move) / Leech Seed / Synthesis
This can be a pretty dangerous sweeper. Set up with Butterfly Dance behind a substitute sounds pretty scary imo, and Petal Dance got an awesome improvement and is very useful with Own Tempo.
I can't decide on the last move though...

And to finish, I have a little cleanup:

Kojondo @ Life Orb | Regeneration
Jolly nature, 252 Spe, 252 Atk, 4 HP
U-turn | Hi Jump Kick | Stone Edge | Me First / Knock Off
I am so going to get haxed up my #@!, but I can afford that with Regeneration and a nice speed. Hi Jump Kick is awesome with 130 power, but suicide if it misses. I like that. Stone Edge is coverage, and Me First works nice with its speed, but Knock Off might come in handy in some way.


Summary (for rating, format, edits):

Cloyster @ Focus Sash
Skill Link
Adamant nature, 252 Atk / 160 HP / 96 Spe
- Shell Break
- Icicle Spear
- Ice Shard
- Rock Blast

Emonga @ Focus Sash
Motor Drive
Timid nature, 252 Spe / 252 SpAtk / 4 HP
- Encore
- Volt Change
- Taunt
- Thunder Wave

Shandera @ Life Orb
Shadow Tag
Modest nature, 252 HP / 252 SpAtk / 4 SpDef
- Substitute
- Calm Mind
- Shadow Ball
- Flamethrower

Porygon-2 @ Evolution Stone
Trace
Modest nature, 252 HP / 252 Def / 252 SpDef
- Ice Beam
- Thunderbolt
- Recover
- Toxic

Doreida @ Leftovers
Own Tempo
Calm nature, 252 SpDef / 252 HP / 4 SpAtk
- Substitute
- Butterfly Dance
- Pettal Dance
- Leech Seed

Kojondo @ Life Orb
Regeneration
Jolly nature, 252 Spe / 252 Atk / 4 HP
- U-turn
- Stone Edge
- Hi Jump Kick
- Me First / Knock Off

Last look:

 

[Aurath8]

I do believe Volt Change could be put to use on Emonga.

leech Seed on Doreida but you might want to alter EVs to add some bulk as well as energy ball so you don't get ConfuseHax.
Cloyster isn't the best Spinner. Ice moves for the win.

Maybe remove U-turn on Kojondo for something like Shadow Claw to aid with coverage.

 

[YOOMTAH]

I do believe Volt Change could be put to use on Emonga.

Yeah, that was what I intended to do, but then I wanted to use Acrobat - wich made me give it a +atk nature, and thus u-turn - to do some last damage when Focus Sash was gone, but that turned out to be a bad idea and now I forgot about it. Thank you.

leech Seed on Doreida but you might want to alter EVs to add some bulk as well as energy ball so you don't get ConfuseHax.
Cloyster isn't the best Spinner. Ice moves for the win.

Leech Seed it will be. Doreida has Own Tempo so confusehax isn't in effect.

Maybe remove U-turn on Kojondo for something like Shadow Claw to aid with coverage.

Saidly Kojondo doesn't learn a good dark/ghost physical move...

Thank you for rating, will change OP now.