End-game Status Stick with Extra Critical Chance/Damage
Good for killing hordes of enemies and applying status for Condition Overload dependent weapons (Assuming they didn't already die to the scourge itself).
Terminal Velocity is irreplaceable here unless you really REALLY need something else on that Exilus slot.
Additional Status can be applied alongside the built in blast damage and can be changed depending on what you need (I always just put Viral because Viral is really good in general).
Primed Fast Hands isn't a must have but does make a significant change in DPS .
Always ADS (Aim Down Sights) with this build for [Galvanized Scope] to work it's magic, The [Scourge Prime] isn't really known for it's huge Critical Damage but if you have the mods for it you should put it on.