I’ve actually been thinking about this a lot lately. I always thought it was kind of lame how, with the Void 3.0 update, Warlocks we’re the only ones who could completely opt out of using the buff they were supposed to be best at using. It also always bothered me that echo of starvation was always considered a key part of most Void builds even on Warlock. It wasn’t until recently with Strand that I thought of a potential solution, what if Feed the Void was a natural property of Voidwalkers. In other words Voidwalkers would always get Devour on ability kills and Feed the Void would instead be changed to supplement and improve Devour. My Idea would see Feed the Void then gain the functionality of Echo of Starvation and Persistence, and grant a small damage buff to Void abilities while Devour is active to keep up the pace. I understand it’s a bit more an extreme rework and likely unrealistic, but I feel it would do a lot for the subclass and fix/future proof a lot of builds.