I'm calling BS! Blade Dancer is heavy on Speed. Warlock doesn't get much of any speed bonuses even with Blink. Blade Dancer can hit multiple enemies at once, rather than just one enemy with melee, and you can use the Blade Dancer's Super and upgrade it to hit enemies at range. The Sun Singer can be built as a attack role, but the only think you will really be doing is allowing yourself to throw more grenades and have a slight damage buff. I can't see why someone would want to do that unless they were running solo. If you are in a team, wouldn't you want your team to get Grenades faster, melee faster, AND super faster? I mean, you can't Super yourself into getting faster Supers. And, how do you know who's melee damage will be stronger?