Hello! I'm still new (Kinda if you just include post count although I've been reading and lurking threads for ages o,o). Anyways, Here is my doubles team for WIFI and i thought I should go for some criticism. Don't hold back.
Metagross@Life Orb
Lonely
252 ATK/ 252 Spe/ 4 DEF
Zen Headbutt
Explosion
Thunder Punch
Earthquake
This guy is mainly here to explode immediately. However, if there is a ghost type on their side, then a STAB Zen Headbutt. If they have rock/steel, then an Earthquake. Focus Sash should make sure it survives first round if attacked by an opponent capable of OHKOing it.
Clefable@Focus Sash
Bold
252 Def/ 252 SpD/ 4 SpA
Softboiled
Protect
Grass Knot/?
Follow Me
Clefable is a support pokemon for Metagross. Since metagross is almost certain to survive first round ( unless there's weather effects) , follow me make sure he survives the second round. It is unlikely a pokemon can KO both these pokemons. Protect is to allow Clefable to block against earthquake and explosion
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These are my two lead pokemons. Basically , if my opponent leads are both weak to explosion, then metagross explodes immediately while clefable protects. However, although this does happen often, there are always the times where there is a ghost type out or something that is resistant to Explosion. In this case, I use follow me on clefable (unless the opponent has fighting type) and proceed to kill whatever necessary through my metagross. I am iffy on the move grass knot though. So if there is a better move, tell me!
Magnezone@Leftovers
Brave
252 Atk/252 Spe/ 4 def
Explosion
Substitute
Thunderwave/ ???
Protect
Magnezone works a little bit like metagross. However, it has a mutual relationship with Mismagius. With its magnet pull, it keeps pokemon in from getting out of Perish Song. Protect helps keeping it alive. Hopefully after perish song, the steel types resistant to explosion will be defeated. Or explosion if nothing resists it.
Mismagius@ Leftovers
Calm
252 Spe/252 Sp Def/ 4 def
Perish Song
Pain Split/Shadow Ball
Protect/Confuse Ray?
Taunt
Taunt for anything that needs to be taunted. Pain split is kind of like a filler move, but could come in handy for some healing. Perish Song is meant to work with Magnezone's magnet pull against steels. I am iffy on whether to put Protect or confuse ray . Confuse ray will help magnezone survive better while protect helps Mismagius. I am leaning towards confuse ray though.
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Magnezone and Mismagius are meant to work together. Perish Song if I cannot kill with Magnezone's explosion, vice versa. I think it's somewhat self explanatory. Although, Taunt and Thunderwave is kind of like a filler that I think will come in handy sometimes.
Gyarados@ Leftovers
Impish
156 HP/ 108 Atk/ 100 Def/ 144 Spe
Dragon Dance
Waterfall
Stone Edge
Protect
This Gyarados was about taken straight out of smogon analysis. With Protect, it can switch in almost anytime with any pokemon. Dragon Dance, waterfall, and stone edge are basics for it to do some attacks.
Spiritomb@Leftovers
Modest
252 HP / 4 Def / 252 SpA
Protect
Calm Mind
Hypnosis
Shadow Ball
Same as Gyarados, this pokemon is made so that it can switch in (hopefully) at any time. Hypnosis helps putting some annoying pokemons to sleep. Calm Mind + Shadow ball for some attacking. I'm not sure at the moment if I should keep Protect, but it seems to be useful enough.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
These remaining two pokemons are for switching in whenever needed. It's obvious that I will not always get by desired combination of pokemons but these pokemons should fit in quite well.
Anyways, Here my team as of now and hopefully it will become better! Thanks for reading the whole post :P ( I hope)

Metagross@Life Orb
Lonely
252 ATK/ 252 Spe/ 4 DEF
Zen Headbutt
Explosion
Thunder Punch
Earthquake
This guy is mainly here to explode immediately. However, if there is a ghost type on their side, then a STAB Zen Headbutt. If they have rock/steel, then an Earthquake. Focus Sash should make sure it survives first round if attacked by an opponent capable of OHKOing it.

Clefable@Focus Sash
Bold
252 Def/ 252 SpD/ 4 SpA
Softboiled
Protect
Grass Knot/?
Follow Me
Clefable is a support pokemon for Metagross. Since metagross is almost certain to survive first round ( unless there's weather effects) , follow me make sure he survives the second round. It is unlikely a pokemon can KO both these pokemons. Protect is to allow Clefable to block against earthquake and explosion
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
These are my two lead pokemons. Basically , if my opponent leads are both weak to explosion, then metagross explodes immediately while clefable protects. However, although this does happen often, there are always the times where there is a ghost type out or something that is resistant to Explosion. In this case, I use follow me on clefable (unless the opponent has fighting type) and proceed to kill whatever necessary through my metagross. I am iffy on the move grass knot though. So if there is a better move, tell me!

Magnezone@Leftovers
Brave
252 Atk/252 Spe/ 4 def
Explosion
Substitute
Thunderwave/ ???
Protect
Magnezone works a little bit like metagross. However, it has a mutual relationship with Mismagius. With its magnet pull, it keeps pokemon in from getting out of Perish Song. Protect helps keeping it alive. Hopefully after perish song, the steel types resistant to explosion will be defeated. Or explosion if nothing resists it.

Mismagius@ Leftovers
Calm
252 Spe/252 Sp Def/ 4 def
Perish Song
Pain Split/Shadow Ball
Protect/Confuse Ray?
Taunt
Taunt for anything that needs to be taunted. Pain split is kind of like a filler move, but could come in handy for some healing. Perish Song is meant to work with Magnezone's magnet pull against steels. I am iffy on whether to put Protect or confuse ray . Confuse ray will help magnezone survive better while protect helps Mismagius. I am leaning towards confuse ray though.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Magnezone and Mismagius are meant to work together. Perish Song if I cannot kill with Magnezone's explosion, vice versa. I think it's somewhat self explanatory. Although, Taunt and Thunderwave is kind of like a filler that I think will come in handy sometimes.

Gyarados@ Leftovers
Impish
156 HP/ 108 Atk/ 100 Def/ 144 Spe
Dragon Dance
Waterfall
Stone Edge
Protect
This Gyarados was about taken straight out of smogon analysis. With Protect, it can switch in almost anytime with any pokemon. Dragon Dance, waterfall, and stone edge are basics for it to do some attacks.

Spiritomb@Leftovers
Modest
252 HP / 4 Def / 252 SpA
Protect
Calm Mind
Hypnosis
Shadow Ball
Same as Gyarados, this pokemon is made so that it can switch in (hopefully) at any time. Hypnosis helps putting some annoying pokemons to sleep. Calm Mind + Shadow ball for some attacking. I'm not sure at the moment if I should keep Protect, but it seems to be useful enough.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
These remaining two pokemons are for switching in whenever needed. It's obvious that I will not always get by desired combination of pokemons but these pokemons should fit in quite well.
Anyways, Here my team as of now and hopefully it will become better! Thanks for reading the whole post :P ( I hope)