Designed to work with Relaxsnorlax's Big shields long range decent duration build with a couple of extra forma to fit [Umbral Intensify] into that build.
This build focuses much more on Ability Strength, for missions where you won't be staying in one place long enough to benefit from spamming her grenades (so that you can spam her turret instead).
If you don't have/want to use [Adaptation], [Augur Reach] is the only other mod you can fit that boosts your abilities, but you could just as easily add most Vazarin mods like Redirection, Primed Vigor, or any non-Vazarin mod that costs 7 or less.
Arcane Energize is pretty much a must with the low energy and low efficiency, but you could drop [Augur Secrets] for [Flow] and remain above 300% Ability Strength. I strongly recommend Arcane Resistance as your other Arcane unless you're buffing your health.