Competitive team help

[Nolafus]

Note: I have separated my Pokemon into different categories because I don't use the same team over and over again.
Leads:
Gigalith-nature(adamant)
Ability(sturdy)
Stone edge
Earthquake
Rock polish
Stealth rock
Item(leftovers)

Cloyster-nature(calm)
Ability(skill link)
Shell smash
Ice shard
Protect
Icicle spear
Item(focus sash)

Physical attackers:
Haxorus-nature(naughty)
Ability(mold breaker)
Dragon dance
Dragon claw
Earthquake
Protect
Item(Draco plate)

Gyarados-nature(adamant)
Ability(intimidate)
Dragon dance
Aqua tail
Ice fang
Toxic
Item(splash plate)

Darmanitan-nature(adamant)
Ability(sheer force)
Fire punch
Stone edge
Toxic
Flame charge
Item(life orb)

Serperior-nature(naive)
Ability(overgrow)
Coil
Giga drain
Leaf blade
Toxic
Item(miracle seed)

Special attackers:
Eelektross-nature(lax)
Ability(levitate)
Thunder
Rain dance
Flamethrower
Thunderbolt
Item(magnet)

Chandelure-nature(brave)
Ability(flame body)
Shadow ball
Will o wisp
Flamethrower
Hex
Item(spell tag)

Volcarona-nature(docile)
Ability(flame body)
Quiver dance
Heat wave
Bug buzz
Flamethrower
Item(charcoal)

Sigilyph-nature(quirky)
Ability(magic guard)
Cosmic power
Psychic
Roost
Psycho shift
Item(flame orb)

I am open to any changes, new Pokemon combinations, and best party combinations. Thank you!

 

[Perriechu]

You really need to bring this down to 6 solid Pokemon that have great synergy with each other, that can give great coverage and actually have use in OU. You also need to post the Ev's of your Pokemon. Once you've done that (if you have trouble just ask in our help thread!) edit your main post. n______n

 

[Giratina'sGuardian]

You should run a defensive core in OU. Personally i run rain with a core of tentacruel+ferrothorn+skarmory to stack up hazards like SR and spikes. Also since rain is used ferrothorn and skarmory's fire weakness is cut in half.