There are so many problems with this. Armor increasing perks have 0 effect on crucible for one. Bladedancers are a single target melee range with 50% damage reduction super that lasts 20-10 seconds while sunbreaker lasts longer, has more range & more armor & does splash damage. These are not comparable because one is better in every way. Bladedancers have nothing but Quickdraw & invisibility(which isn't even exclusive to them anymore).