No clue why you're not happy w/that combo, I love it personally and its my fav scrap by a long shot. Then again my toon is a giggle-fest concept wise and especially costume she's just the cats meow and is complimented constantly.
But for solo or team play she's always the forerunner. W/out question the quickest solo toon I have to complete missions. Team wise, rarely endangered, gives the team time to re-group if needed from a fallen tank, controller or others when theres a major chance for a team wipe. Her ability to rarely fall into the yellow-red zone of health allows the support classes to focus on those that REALLY need the help, blasters, trollers, the tank from time to time from alphas ect, ect..
Watching bosses, and red-orange-pinks fall from 1-3 shots with CRITICAL-CRITICAL is exactly what I'm paid for.