U-Turn!

[UncleHypno]

The first thing: I am not English... excuse my language. Sometimes I make mistakes
The great skill of the team is the ability to "foresee" changes and meet determined attacks witch determined pokemons (resistant). Is the key in Pokemon. You know how they work these teams.
Almost every weakness is supported by two resistors.

Landorus @ Life orb
Abiliy Sheer force
Nature Naive (+Spe, -SpD)
EVs: 4 Atk, 252 Spe, 252 SpA
-Earth power
-Psichic
-Hidden power (Ice)
-U-turn

-Resistant: Fighting (Magneton), Poison, Bug (Starmie).
-Weakness: Water (Starmie, Rotom-W), Ice (Scizor, Magneton, Rotom-W, Darmanitan, Starmie)
-Immune: Ground (Magneton, Darmanitan), Electric (Starmie).
Why? ... I don't know, he just is very good, and crushes Conkeldurr and spinners (Tentacruel, Tyranitar), besides Gliscor, and other no-choice Landorus.

Scizor @ Choice band
Ability Technician
Nature Adamant (+Atk, -SpA)
EVs: 252 Atk, 248 HP, 8 Spe
-Bullet punch
-Superpower
-U-turn
-Pursuit

-Resistant: Normal, Bug (Azelf, Starmie), Ghost (Azelf, Starmie), Steel, Grass (Starmie, Rotom-W), Psychic, Ice, Dragon, Dark (Azelf, Starmie).
-Weakness: Fire (Rotom-w, Darmanitan, Starmie).
-Immune: Poison.
Why? ... Why not!? Is the only one! Fucker of fuckers since he appeared! XD with the same set!
Two extra points (speed) to be faster than... than Scizor with only 4 EVs in speed xD The worst is that it is very effective.

Magneton @ Eviolite
Ability Magnet pull
Nature: Modest (+SpA, -Atk)
EVs: 252 SpA, 244 HP, 12 Spe
-Voltswith
-Flash canon
-Hidden power (Fire)
-Signal beam

-Resistant: ¡All except water! WTF!
-Weakness: Fire (Rotom-w, Darmanitan, Starmie), Earth (Azelf, Rotom-W), Fight (Azelf, Starmie).
-Immune: Poison.
Why? For his excellent resistance and Magnet pull (Spikers and Scizor band+Rotom-w scarf, besides choice-Genesect).
With only 3 extra-points (speed) is faster than Skarmory and Scizor (with his typicals 10 points).
I could change Signal beam for Sustitute.

Rotom-W @ Choice scarf
Ability Levitate
Nature Modest (+SpA, -Atk)
EVs: 252 Spa, 252 Spe, 4 HP
-Voltswitch
-Hydropump
-Hidden power (Grass)
-Trick

-Resistant: Flying, Steel, Fire (Magneton, Scizor), Water (Darmanitan), Ice.
-Weakness: Grass (Scizor, Magneton, Darmanitan).
-Immune: Ground (Magneton, Darmanitan).
Why? For the good symbiosis that comes with ... with almost all team.
HP Grass to surprese his counters: Gastrodon, Swampert and Quagsire.

Darmanitan @ Choice scarf
Ability Sheer force
Nature Adamant (+Atk, -Spe)
EVs: 252 Atk, 252 Spe, 4 HP
-Flare blitz
-Earthquake
-Superpower
-U-turn

-Resistant: Bug (Azelf, Starmie), Steel, Fire (Magneton, Scizor), Grass (Rotom-W, Starmie), Ice.
-Weakness: Ground (Azelf, Rotom-W), Rock (Magneton), Water (Rotom-W, Starmie).
-Immune: No.
Why? To present more resistance to Sunny teams. He is frightening... but under the sun...
I think it would be better if it were Jolly.

Starmie @ Choice scarf
Ability Natural cure
Nature Timid (+Spe, -Atk)
EVs: 252 Spe, 252 SpA, 4 HP
-Surf
-Thunder bolt
-Ice beam
-Rapid spin

-Resistant: Fighting (Magneton), Psychic, Water (Darmanitan), Steel, Ice.
-Weakness: Bug (Scizor, Magneton), Ghost (Magneton, Scizor), Dark (Scizor, Magneton), Grass (Scizor, Magneton), Electric (Magneton).
-Immune: No.
Why? On a team that uses both U-turn, hazards can be fatal. Is my anti-spinner.

Rest+Natural cure for return at team.. and a long survival. I know that with Rest, Starmie is predictable, and can hunt with Pursuit, but ... I've seen it used so rarely, I think I prefer to take advantage of most of the time has an additional benefit.
Thunderwave when he uses his resistance to water... and the fucking bloquer-spin Jellicent (With wow!). Do not know if I should change it to choice-version; the best counter: While they use a dance, swotch my pokemon in Starmie. Thunderbolt for Gyarados, Surf for Volcarona, Icebeam for Salamence Dragonite (Choice scarf simulates +1Speed. It is still faster)... and fucking choice-landorus.

 

[UncleHypno]

Other interesting pokemons with U-Turn/Voltswitch

-Azelf
-Ambipom
-Crobat
-Flygon
-Mew
-Victini
-Xatu
-Zoroark
-Uxie
-Gliscor
-Hydreigon
-Infernape
-Jirachi
-Landorus
-Mienshao
-Rotom-H/C
-Staraptor
-Swellow
-Genesect
-Yanmega
-Rotom-H/C
-Zapdos Lightning rod
-Manectric
-Magnezone
-Forretress

 

[UncleHypno]

Edit! +1UP!!

 

[The QWAZ]

Sooooo you have a magneton over magnezone wich is bulkier more powerful and generaly better :/
Also this will be locked if you dont add more descriprions

 

[XcRunner]

I like how you have good synergy and that a lot of your pokes carry u-turn, but 3 have a choice scarf and 1 has a choice band. I'd recommend a defensive Rotom-@ to replace the scarfer you have atm. Here's the set I use.

Rotom-W@leftovers
Bold
-volt switch
-hydro pump
-will-o-wisp
-pain split
252 hp/168 def/88 spe

With only 2 choiced pokes, your team has a much easier time taking hits, and you still maintain Darmanitan as a scarfer. Teams that switch a lot often need a stealth rock/spikes user to rack up damage, and forretress seems like a good choice as it has volt switch and can spin. Because of that, I'd recommend replacing starmie with forretress with this set.

Forretress@leftovers
Relaxed
-Stealth Rock
-Spikes
-Rapid Spin
-Volt Switch
252 hp/176 def/80 spD

TLDR:

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Bulky Rotom > Scarfed
Forretress > Starmie