Drop Kael for Steelskull, I'd say - between Ninja, FB and Lanakis' ally attacks, you have enough offense and you need more support instead. Aox is also pretty nice, but think Steelskull might be more important.
And obviously having all your champions at level 60, with the Warmaster mastery, adds several millions of damage per run as well (in addition to allowing themselves to heal a lot if they are in lifesteal gear).
Also, Dark Athel is pointless, don't even bother touching her. Not sure why you have Rockbreaker and Ultimate Galek at 60 while your legendaries, your CB team, Coldheart, Steelskull etc. aren't 60 yet... UGalek could have some use on Spider dungeon, but he wouldn't have been that high in my priority list.
At this point I would max Ninja, Lanakis, and Gorgorab and switch him in for Reliquary Tender. Also book them all and correct masteries. Another thing, make Gorgorab the fastest so he can put the increase attack buff up and then the others can smack one by one over and over again. High attack% stats would also help on each with Lanakis's ally attack rips.