I'm still, after spending too much play on resets (about 5 times so far), not too sure on what to take.
Of 3 things I'm sure I want them; the razor daggers (increase dodge, extra duration), aimed shot(increase crit rate and 250% dmg on crit) and heal(self-heal and extra heal pack).

But seriously.. the fourth? I have no idea.
The smoke bomb seems "nice" but warriors blow the smoke away with their whirlwind skill it seems, wtf?
That might happen with mages whirlwind skill aswell.
And the explosion damage is freakin hillarious.
Trap seems "oke", but again, the explosion damage is hillarious.

I dont get it... the only decent mob skill rogues have is the razor daggers.
The rest is useless, damage wise...

At this point I'm using that first skill which dashes to the target.
Upgraded with 2 additional targets, multiple small hits and healing capability.