Purpose:
The purpose of this build is to provide high [Dex Pixia] damage, large and long lasting razorwing blitz buffs and a way to stay in razorwing indefinitely.

How it works:
Use 1 to stay in 4, pop thorns and/or dust for more survivability. [Aviator] + thorns + razorwing innate evasion should make staying alive pretty easy.

Why these mods:
Replacing [Streamline] with [Fleeting Expertise] shortens the duration of [Razorwing Blitz]'s buffs too much, so you'll have to spam 1 to compensate. That's just my personal preference though. Adding [Narrow Minded] kills this build because you need to have enough range to proc [Spellbound Harvest]. With the amount of energy that you can gain with [Spellbound Harvest] efficiency doesn't matter as much, however duration is still nice to have for those [Razorwing Blitz] buffs. [Primed Flow] helps give a bit more of a cushion if you go a while without using your one if you've maxed your energy previously. The strength mods and [Growing Power] are for [Dex Pixia] damage and [Razorwing Blitz] buffs.

Notes:
I haven't tested this build thoroughly, so you might be able to get away with <100% range, but ideally you should be able to proc [Spellbound Harvest] in normal situations and not just in densely packed corridors.

[Titania]'s passive and arcane victory should provide enough healing, you could always replace it with arcane pistoleer though. Arcane precision's dps boost is just too good to not have. Using a [Hunter Adrenaline] build to try and [Regen] energy isn't all that viable for steel path content since so many of [Titania]'s abilities revolve around evading attacks and when you do get hit by them you'll die pretty fast even with a high DR build. If you have arcane energize then this build is probably pointless, I'm not sure because i don't have one.

Also if you self cast 1 by holding it you can stop yourself from getting stunned when you crash into things. I like to get 4 stacks of [Razorwing Blitz] and then "walk" instead of "sprint" while in the archwing, even when i'm doing that and aiming I still move very fast but I'm able to control where I'm going for the most part.