Primary fire modes main damage scaling is impact so I usually do corrosive with weapons like that it’s alt fire though scales so heavily off of slash that you would be doing it dirty to do anything besides a viral slash build for it so that’s a tough spot because then you have a couple options of wasting a mod slot in multishot when you could put it to damage increasing mods fire rate mods if your like that i guess I wouldn’t recommend it but cool i guess or more status effect mods for more status chance and status damage or more Crit chance and Crit damage I wish I could have a build for it’s primary fire and when i toggle to its alt fire it uses its alt fire build but def prob go with a viral slash Crit chance/damage build