Rate My OU double battle Team?

[FrontSword]

Singham (Conkeldurr) (M) @ Assault Vest
Ability: Guts
EVs: 56 HP / 236 Atk / 40 Def / 176 SDef
Careful Nature
- ThunderPunch
- Mach Punch
- Hammer Arm
- Knock Off

Conkeldurr has guts so that it can still hit hard even after a will-o-wisp. It is also meant to be bulky against special attackers like Greninja.
It has knock off to make evolite users more fragile.

Rotom-Wash @ Sitrus Berry
Ability: Levitate
Shiny: Yes
EVs: 252 HP / 128 Def / 128 SDef
Calm Nature
- Will-O-Wisp
- Confuse Ray
- Thunder Wave
- Light Screen

Rotom-W is a staller and it can usually live a average of 4 turns. I usually use the status moves first.
Then I use light screen when it is about to die so I can give my Pokémon team a little more bulk.
I use it for the Parafusion strategy.

Heatran (M) @ Air Balloon
Ability: Flash Fire
EVs: 124 HP / 128 Def / 128 SAtk / 128 SDef
Modest Nature
- Flamethrower
- Protect
- Earth Power
- Will-O-Wisp

Heatran is meant to kill mawile. It has will-o-wisp so it can cover up it's physical weaknesses, and has some added bulk in defenses so it won't be KO'ed.
I also use him to KO ferrothorn or venusaur.

Mawile (F) @ Mawilite
Ability: Intimidate
Shiny: Yes
EVs: 220 HP / 36 Def / 252 SDef
Careful Nature
- Play Rough
- Sucker Punch
- Iron Head
- Protect

Mawile is meant to make dragons/psychic/fairy type pokemon faint. It has a lot of bulk in special defense/HP so it won't die as fast from special attack moves, and has no ev's for attack since it's huge power ability boosts it's attack stat a lot anyways.

Thundurus (M) @ Life Orb
Ability: Prankster
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature
- Thunderbolt
- Thunder Wave
- Hidden Power [Ice]
- Protect

I use Thunderus to KO dragon/ground or flying with hidden power ice. I also use Thunderus to KO talonflame. I don't use it's thunder wave that much because it is to obvious.
Thunderus is also useful against mega charizard Y since my Rotom-W dies fast from grass type moves.

Garchomp (M) @ Lum Berry
Ability: Rough Skin
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature
- Earthquake
- Stone Edge
- Poison Jab
- Protect

Garchomp is used for electric type pokemon or flying types. I gave it a lum berry so I can KO or almost KO Breloom with poison jab if it tries to spore me.
I can replace Garchomp but it can be really useful sometimes.

 

[BurningFury101]

Shouldn't this go in the "XY OU Other Teams" section? Anyway nice team you've got here!

Your EV Spread and Nature on Conkeldurr is slightly weird, the normal set is this:
108 HP / 152 Atk / 104 Def / 144 SpD
Adamant Nature

Drain Punch > Hammer Arm, the loss of power does suck, but Conk needs the regen with AV. Ice Punch > TPunch to hit Flying/Ground Types harder.

Your Rotom-W is very weird, running WoW and TWave on the same set is a no no. Run Hydro Pump, WoW, Thunderbolt, and Light Screen/Protect.

On Garchomp, Poison Jab is respectable but I feel that Rock Slide is better, the Flinch Chance is unbelivable.