A support bow for Mesa, Mirage and Saryn in ESO/Steel Path since they don't generally use Primary weapons - just their 4 & Exodia Brave Sepfahn or [Nikana Prime] to heal (with this equipped) or spread spores with Toxic Lash ([Saryn]). Primary Dexterity in the Arcane Slot because you're not actually firing this unless you really need to hit something with a silent 125K guaranteed crit. Just keep it quietly tucked away and use [Sporelacer] for the rare times you want to kill things without Abilities or melee (ie Arbitration Drones and destructible mission objectives like Reactor sabotage).

Slot a Riven over [Vigilante Armaments] if you've got something good, skip the usual Galvanized mods since we're not chewing through multiple enemies with this.

What I really want is a WuZarr or WuBramma build with [Nikana] lifesteal Amalgam on Secondary, but we can't have good things in this life so we're stuck with [Daikyu] in the Primary Slot.