A Pokémon team [Update]

So, here's a team of 4 that I'm putting together. I was wondering if anybody would point out any strengths of weaknesses I'd need to watch out for, and any customisable options you might suggest.
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Pokémon: Scizor

Nickname: Scyzayox

Gender: Male

Hold Item: Life orb

Nature: Adamant

Ability: Technician

Moves:
1: U-turn
2: Pursuit
3: Iron Head
4: Roost

EVs:
HP - 4
Attack - 252
Defence - 0
Sp. Attack - 0
Sp. Defence - 0
Speed - 252
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Pokémon: Porygon-Z

Nickname: Legion

Gender: Genderless species.

Hold Item: Life Orb

Nature: Timid

Ability: Adaptability

Moves:
1: Nasty Plot
2: Hidden Power [Fighting] (took ages)
3: Tri Attack
4: Ice Beam

EVs:
HP - 4
Attack - 0
Defence - 0
Sp. Attack - 252
Sp. Defence - 0
Speed - 252
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Pokémon: Milotic

Nickname: Milokaross

Gender: Female

Hold Item: Flame Orb

Ability: Marvel Scale

Moves:
1: Surf
2: Ice beam
3: Recover
4: Hidden Power [Fire] (Er.. I think? I wasn't going to go for a specific type again.)

EVs:
HP - 84
Attack - 0
Defence - 252
Sp. Attack - 106
Sp. Defence - 56
Speed - 12
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Pokémon: Rhyperior

Nickname: Anklydosor

Gender: Male

Hold Item: Leftovers

Level: 72

Nature: Adamant

Ability: Solid Rock

Moves:
1: Earthquake
2: Stone Edge
3: Substitute
4: Avalanche

EVs:
HP - 252
Attack - 80
Defence - 176
Sp. Attack - 0
Sp. Defence - 0
Speed - 0
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Yep. That's it for now. Feel free to add and take away moves and strategies, and suggest whole new Pokémon that I should look into for different roles to play.

Who says I need stop at six? I mean, besides the trainer's code and that.
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Also, could somebody suggest a good Pokémon to use as a wall, other than a Shuckle (preferably, also other than a Chansey)?

...'Bout your Scizzor, why no swords dance?

and why speed ev?

lolz, not the standard smogon scizorr huh. []

Kay, let's start.

1. Scizor- Say, you really don't need swords dance. Bullet Punch>Iron Head, please. Outclasses Iron head. I say you've found a new way to utilize scizor. Scouting lead. U-Turn, Bullet Punch, SuperPower (instead of Pursuit) and Roost. Nice originality. Nothing else wrong.

2. Porygonz, i love it. No Problemo.

3. Milotic- Since you're going to abuse Marvel Scale, instead of losing 12% HP each turn, just use this set- Surf, Ice Beam, Toxic/Sleep Talk , Rest. Remember, sleep is also a status problem . Im sorry and I know how hard it is to Hidden Power breed and all, but Fire is just not there xD. You need to stall with milotic, and Hidden Power Electric is still okay, but not fire, sorry.

4. Rhyperior- Okay, Substitute is not the best option really. A better set would be- Earthquake, Rock Blast, Megahorn, Rock Polish.

Use it as a late-game sweeper. Remember, Rock Blast is specifically for other Substitute users, since it hits multiple times.

For a Wall, you could use skarmory. 252 HP, 252 Def, 4 SpD/Atk

Whirlwind, Brave Bird, Roost, Spikes

So now you have 5.

Remember, set up spikes to assure a cleaner rhyperior sweep.

I would reccomend Machamp, for a bulky offensive pokemon.

Machamp@Leftovers
252 HP, 252 Atk, 4 Def
Adamant Nature (Preferable)
Ability: No Guard
~DynamicPunch
~Stone Edge
~Ice Punch
~PayBack

Win set.

Dunno. Machamp has a low Sp. Defence and Psychic weakness, so a bug with a psychic move would be bad.

Erm, machamp first of all does NOT have LOW SpD.

It has remarkable bulk with the given EVs (by me)

And uh, may i know what bug with psychic you are mentioning lol?

Even if you do not concur..

Threats to Machamp:

Azelf- Scizor wtfpwnts it.
Skarmory- Milotic plz.
Slowbro/king- Scizor.

Please let me know if i've missed out a threat