This is a build for low/mid tier whatever (please forget about Hijack and Infested Salvage) missions.
I would advise using Zenurik School so you can perform an Energizing Dash when the mission starts.
• Press 1: Become Day-Form;
• Press 3: You will cast an aura that will give you 50% strength for any other abilities you cast;
• Press 4: Every enemy in 26.1m radius from you will receive a Slash proc;
• Run around.
As you turn your [Maim] (4th skill) on, enemies will instantly start to die. Look out for a Energy Orb drop. When you spot one, turn off your [Maim], catch the Energy Orb and then recast your [Maim] (your [Energy Conversion] mod will proc and your [Maim] will deal even more Slash Damage).
Keep an eye on your Energy, as this build drains 3.37 Energy per second, so a full Energy bar (248) will last 73,6ish seconds. That's a lot of time, but pay attention anyway.
Arcanes are Energize so you don't run out of Energy and Agility so you can move faster. You may use two Energizes if you are that rich.
Yes, this build lacks survivability, but whom would you be afraid of if everyone is dead?
Enjoy.