I made a build around Secondary encumber which fixes all match-up problems the [Afuris Prime] has, you should go see it

Both Viral and Corrosive builds work well, but i use corrosive in it's place due to a problem i had with the [Twin Grakatas] without armor strip

Viral can save you some shots and deal more damage to acolytes if armor stripping

These guns have bad ammo economy, so [Carrier Prime] or ammo mutation is needed

Cascadia flare is a free [Hornet Strike], so use it well