Nightblade not adding crit?

SHITTY THINGS TO CONFIG PROPERLY - elusive effect, inc elusive effect from claw, the varying effect from withering step and nightblade resets and effect of all these on dot multi via Perfect Agony - full life vs low life vs neither - helix # of hits - EHP from elusive - Focus uptime (especially taking into account player skill and timing) Levelling 1-12 - mule Splitting Steel with a Duelist start, link with Onslaught and Chance to Bleed Early links Splitting Steel - Onslaught - Chance to Poison / Chance to Bleed Key Act 1 Vendor Gems - Precision - Whirling Blades - Smoke Mine - Spectral Helix - Withering Step - Steelskin 12-55 - Spectral Helix - Onslaught - Nightblade - Chance to Poison (swaps to Added Chaos after Normal Lab) - First lab = Noxious Strikes Key Act 2 Vendor Gems - Herald of Agony (Before Poison-cap from tree) - Herald of Ash (Before Auras) - Faster Attacks - Blood Rage - Nightblade Support Key Act 3 Vendor Gems - Assassin's Mark (Before Normal Lab. After Normal lab go Despair) - Plague Bearer - Grace - Purity of Elements (depends) 55+ - Spectral Helix poison nightblade setup fulltime now. Vicious Projectiles/Void Manipulation are lowest priority supports - Second lab = Toxic Delivery Obviously there are a billion other things to look for depending on early wisdom/transmute and socket availability. Auras I probably go Grace + Purity of Elements for levelling. War Banner insane if you get it. Definitely buy after A6 if you have sockets. Steelskin until maps. Smoke mine or frostblink for movement skill of choice early. Pair with attack based movement skill most fitting (shield charge/blink arrow)