Ok after playing with my friend ive realised that 6 on 6's are very agressive and dont last for more then 4 turns, so after think the one team i think works is an explsion core with ghosts to finish it off so here it is.
Azelf @ Choice band
Levitate
252 Atk 252 Spd
Adamant
Explosion
Heatran @ Choice band
Flash fire
252 Atk 252 Spd
Admant
Explosion
Metagross @ Choice Scarf
Clear body
252 Atk 252 Spd
Jolly
Explosion
Gengar @ Choice Scarf
Levitate
252 SpA 252 Spd
Timid
Dark pluse
Focus Blast
Shaddow ball
Thunder Bolt
Rotom-H
Levitate
252 SpA 252 Spd
Timid
Overheat
Shadow ball
Thunderbolt
Tyranitar
Sandstream
252 Atk 252 Spd
Jolly
Crunch
Earthquake
Superpower
Stone Edge

Azelf @ Choice band
Levitate
252 Atk 252 Spd
Adamant
Explosion

Heatran @ Choice band
Flash fire
252 Atk 252 Spd
Admant
Explosion

Metagross @ Choice Scarf
Clear body
252 Atk 252 Spd
Jolly
Explosion

Gengar @ Choice Scarf
Levitate
252 SpA 252 Spd
Timid
Dark pluse
Focus Blast
Shaddow ball
Thunder Bolt

Rotom-H
Levitate
252 SpA 252 Spd
Timid
Overheat
Shadow ball
Thunderbolt

Tyranitar
Sandstream
252 Atk 252 Spd
Jolly
Crunch
Earthquake
Superpower
Stone Edge