Right, so I know this build probably looks quite strange.

But I thought making yet another AoE focused explosive primary build was boring, so I decided to build around the Alternate fire. I realize that this is far from 'meta', or perhaps even far from being effective in any way, but I wanted to give it a shot anyway. I enjoy the unique quirk, and for the star chart it absolutely does fine. Not to mention the possible synergies you can create with this weapon.

Have a frame with Arcane Avenger equipped? When the Arcane is in effect, it causes this weapon's Crit Chance to jump up from a measly 2%, straight up to a whopping 47%! That's incredibly high for a beam-style weapon! Paired with [Combat Discipline], and this weapon can be at full operating power almost all of the time. Not to mention the synergies you can achieve with [Harrow]'s Covenant buff!

I'm excited to test this one out some day!