

Warlock version of Ammo Man, two flavors
I saw that post about double ammo gen armor set bonuses and thought it was neat, so I wondered if I could figure out a way to make even more, almost excessive amounts of ammo, and after trying exactly one build, decided it was good enough to share.
If you aren't familiar and didn't see the other post, Oryx's Memory grants increased ammo meter progress on powerful enemy kills, Crystocrene spawns an Orb and grants ammo meter progress for kills every 12 seconds, combining for a lot of ammo generation.
This Warlock version uses Cenotaph Mask, which makes Heavy for allies and Special for me, so I can run Heavy Finder and Special Scout to make Heavy for me and Special for allies. Empowering Rift is also on because it increases ammo gen while you're standing in it.
Subclass configuration is mostly to geared towards debuff application because I'm trying to be a helpful fella here today.
On Wavesplitter I go for an ammo gen mod on the chestpiece too, to push the ammo gen to 100 on the Splitter, and go for Bricks from Beyond for even more ammo. It might not be necessary but NPA does carry a lot of other Void support too, which is nice. That said, I love Harsh Refraction and Tablet of Ruin would work great here too. Attrition Orbs + Siphon also generates an alarming amount of Orbs just from holding down M1 and walking at enemies with Wavesplitter.
On Microcosm, Kinetic Synthesis benefits the Trace and Threat Level with All-Star, and you get the benefits of Facet of Grace to farm Transcendence with all the Kinetic damage going out, and deals somewhat passable damage to bosses in those activities.
You could swap Artifacts and run Prometheus Lens (which has 100 base ammo gen) for more Solar emphasis, I just like Wavesplitter and its really good.
With a Scavenger on, I generate way, WAY more ammo than I could ever use and pull off really solid ad clear for a build that started mostly as a joke for me.