I've never seen Bladedancer as a good PvE class. The only place I used it was for Crota in the lamp run so I could go invisible all the time.

It is good if you're used to it, except: 3 kills = 1 orb You are a lil squishy, so best against low-tier mobs You [i]might[/i] have to flee, don't get cocky, just survive. If you use it against a tier 2 enemy, that's the [b]only[/b] thing you kill [b][i]IF[/i][/b] you kill it. [spoiler]The orbs tick me off the most tho[/spoiler]

But Nightstalker is just so much better for small mobs and higher teir mobs alike. More damage. A crap time of orbs from small mobs. You can keep mobs from moving and shooting. And all Bladedancer does is increase agility and give you faster and more powerful melee. It's great in PvP, but it wasn't designed for PvE.