Destiny 2 Warlock BuildDevour, I Barely Know Her

Elemental Siphon, Hand Cannon OverLoad, SideArm Unstoppable Mods are left to choose in Artifact Unless you change the Strand and Void Weapons and need to switch champion mods to facilitate. After finally getting "Buried Bloodline" I've found you can replace energy weapon with that for devour, opening up Star Eaters to be paired with another exotic trait of your choosing as Buried Bloodline will still benefit from having volatile rounds as well as giving devour more easily, choose your kinetic depending on what activity your doing

As long as Strand and Void Weapons are being used feel free to use what you like and feel comfortable with, Commemoration and Kindled Orchid work for me because it's what I like (Gravitons Lance is immediate second if I need anything better than the KO in the Energy slot), use whatever strand and void weapons you'd like.

Charged melee gives "Unraveling Rounds" and grenades give "Volatile Rounds"

The Arc Aspect "Lightning Surge" paired with Needle Storm will allow quick ins and outs while jolting and causing good ad clear as well as every kill will proc "Facet of Blessing" which causes health Regen if devour isn't up.

If you don't have the exotic class item with filaments then you can replace either aspect, I would keep helion to keep the added scorch turret and can switch to devour aspect with imo "Phoenix Dive" to allow the helion to be procd more often and give some healing but there's room to play with it in order to achieve the sustain through devour.

Essentially your letting "Volatile Rounds" and "Unraveling Rounds" do the heavy lifting when needing damage, your not going to get crazy boss DPS with this but it's fun and makes everything explode, can incorporate "Gravitons Lance" to increase the void explosion fun.

You also have Void(Weapons), Arc(Slide and Charged Melee with Aspect), and Solar(Helion) to deal with whatever shields you encounter. As well as having Strand to build your Transcendence Bar fast which gives accelerated ability Regen allowing you to jolt the whole room multiple times or allowing you to keep up the ammo buffs during some phases where allowed.

Powered melee anything to gain Radiant buff which will give Shield Pierce so (unfortunately sometimes it's a little fucky thanks to Destiny being Destiny so sometimes while Radiant the shield won't get pierced.... BUT... 60% of the time it works every time!) you have something for each type of champion during whatever activity so no need to worry about switching.

Oh yea, if you have the Exotic Class Item with Star Eaters then make sure your at 6 Stacks before blowing thy load.

Have fun.