The best team I have is:

zapdos=drill peck, thunderbolt, shock wave and fly lvl 58
articuno=blizzard, mind reader, ice beam, sheer cold lvl 67
blastoise=surf, hydro cannon, hydropump, mega punch lvl 71
moltes=flamethrower, fire blast, overheat, firespin lvl 53
lapras=perish song, icebeam, waterfall, bodyslam lvl 43
genger=sludebomb, curse, shadowball, theif lvl 56

They have helped me beat the elite four and trainer tower on seven island. Also mewtwo by mistake this is only my best team im leveling my mew up.