[Steel Charge] aura isn't required since many people run wit this mod, hence the utility of [Rejuvenation]. However, the aura mod you want is up to you.

I don't know what the arcanes do, so pick the ones you see fit.

Forma as much as needed.

This build is designed to keep you alive for as long as possible, as well as deal the highest amount of damage available.

Use your abilities as much as you want, duh.