Paired with my [Synapse] build.

You could replace arcane energize with Molt Efficiency to increase the duration of abilities even further; especially since you'll be pairing Sepctrosiphon with [Zephyr] tornados for the constant stream of energy and CC.

You could also replace [Natural Talent] later on with something else since archon shards can be used to make up for the casting speed; or you can double down for faster cast times.

As far as archon shards go, I went with 2 crimson (Ability Duration and Primary Status chance) 2 amber (2x Casting Speed) and one azure for a small addition to hp [Regen] but will soon be replaced with another crimson for ability duration again.

The purpose for replacing [Zephyr] airburst rather than tailwind is because the tornados will be doing all of the pulling for you; furthermore you can hold 1 to make tailwind let you float in the air. So when acolytes come around and one of them tries to disable your abilities; for some reason it will not be able to deactivate tailwind. Also the additional crit chance is an alright addition with the [Synapse] Build.

Lastly I use the Madurai operator focus tree for Power Transfer additional 50% cast speed which can save you if you weren't paying attention and need to get your abilities out quick; And the Void Strike adds a noticeable amount of damage for your [Synapse] when in later stages of SP Survival.