If you don't want to spend the umbral forma, switch out the umbral mods for basic ones and switch [Augur Message] out for [Constitution].

Also, [Rolling Guard] is nice to have in place of [Umbral Fiber] to remove status effects.

In Vodyanoi, cast 4 on the spot in front of the ground floor door near the rock pillar and then kill everything with slash damage do that the [Nekros] that is with you can give you more loot on top of the pilfering you are already doing.

The focus of this build is max duration and efficiency with precise range.