In contrast to the other poster, my KE build just ignores the existence of Spirit Blade and Fade Cloak. In the KE tree, basically just took the left side, and never mapped Spirit Blade.
I think the basic build(in no particular order) is something like Immolate+, Flashpoint, Pyromancer, Fire Mine+, Chaotic Focus, Fade Step+, Barrier+, Peaceful Aura, Dispel, Rejuv Barrier, Guardian Spirit, Energy Barrage+*, Conductive Current, Static Charge, Lightning Bolt+*, Gathering Storm, Spirit Blade, Combat Clarity, Fade Shield, Knight-Protector, Disruption Field+. (*: + is optional, probably pick one not all) If you get some extra points, pick up Winter's Grasp (situational replacement for Lightning Bolt) and the freeze burst thing.
I have mapped; Fire Mine, Immolate, Barrier, Fade Step, Dispel, Lightning Bolt, Disruption Field, Mark of the Rift. The basic idea is to LB\DF to do some CC, deal out damage with fire mines and immolate while bouncing around with fade step. You don't do enough constant damage (no spirit blade) to have permanent invincible-barrier, but it blows up to full pretty frequently without needing to cast it so that you can burn it off for extra damage. Doesn't feel as stupidly broken compared to melee-based KE, imo, and is way more fun (and more active).