The issues with voidwalker are almost never ending. Each subclass suffers in many ways. As well as it's supers and neutral game. As warlocks are given exotics to make something medicore decent or viable. (Blink) has its entire animation stretched as its actually not a teleport. Severley punishing blink users. As you can shoot where they were and kill the blink user to where they actually are. https://youtu.be/K-8JCQGRV3Y. I provided a link on it. Thing is blink needs an exotic to make it better or viable in most eyes. Astrocythe (Axion bolts) if not charged up will literally follow people around like a friendly arc soul to your enemy.  Still doesn't matter even if its charged up since hunters make up 3/4's of the crucible and dodge will negate all tracking. So its only gonna hit other warlocks or titans. The grenades need aggressive tracking like voidfang Vestments granted but without a charge required and no exotic needed. As well as hunters shouldn't be able to dodge it. Warlocks, and titans can't avoid tracking nades by doing absolutely nothing. (Scatter nades) are plauged by a delayed bouncing mechanic that has been in game since destiny 1's early beta days. This grenade is still terrible when charged up through top tree's chaos accelerate as the damage and radius is in consistent and weak all around. They Should perform like nothing manacles and a charged up version is even deadlier. Here's a link showing it in d2 and there's other videos on YouTube from d1 and d2 showig this issue. https://youtu.be/Vrk5d54jmuc (Vortex grenades) people just walk in and out of. The only use is to either eat your grenade, charge it with hhsn or charge it up with chaos accelerant. Best options are eat your grenade and chaos accelerant. As hhsn is over nerfed. (Attunement  of chaos) has the least issues going for it. Which is surprising! When charging your nade with chaos accelerant no matter how long you hold it you will never re-gen super energy. https://youtu.be/WMlRSsUDIkk Chaos accelerant animation needs a speed up. Should be the same time as pre nerf hhsn. Last and foremost enemies shouldn't be able to pop nova bomb only you. Again chaos accelerant does nothing for Scatter grenades. (Attunement of fission) is god awful now. The super hasn't recovered from the over nerf, hhsn over nerfed and atomic breach has a few issues. Atomic breach has a delay with its melee. No where in the description does it say it's delayed. Subreakers have the same melee knock back damage and everything yet the effects are applied instantly. It's impossible to trade on this melee. As you'll die before the detonation actually goes off. Most times the knock back is never applied. Hhsn range nerf is fine the charge up time and self damage is what hurts it. One bolt can damage me and ill die but one can hit my enemy and they survive!! The charge up time now prevents aggressive play with it as you can't even blink and go into using it let. You can't effectively close the distant to someone  you can't catch up to while in nova warp. Nor can you in super with hhsn range nerf and charge up time ruined that. The return of all ability energy has been removed on activation of nova warp and end of it. Now the real kicker why people don't use the subclass anymore. We thought we were gonna get a good trade off for a better super and movement  to the bring in line of hhsn. Wrong the damage resistance is terrible since you actually have to charge up before effectively damage someone. Nova warp struggles to combat other roaming  supers you need to work 10 times harder to do so. Unlike Spectral aids, arc staff, sentinel, striker and top tree stormcaller. Its near impossible to catch up to a good player unless they make a mistake. You need to catch someone great good luck the moment you get into range you lose all momentum with a combination of not being able to instantly attack like you can with other romaing supers. You also move 3 centimeters and start falling towards the ground and movement come almost to an entire hault the moment you being to charge up. Yes you can use blink. Not everyone does and dark blink doesn't fix the charge up time it takes to detonate as again all the issues begin with charging up. Uncharged blasts are so inconsistent and you'll be essentially melted before you can successfully detonate a small blast. Aren't you lucky if they have a vorpal weapon. Nova warp is the only romaing super no one fears. As you can shut it down effortlessly by yourself since on top of all the listed issues damage resistance is a joke still. (Attunement  of hunger) is stuck in y1 of the primary meta. Vortex nova bomb will never be good unless it will be paired in combo to Lance. And most people won't even touch nova bomb since Lance and shatter are gone. As it needs aggressive play and needs to limit the escape odds the super allows. As its high risk almost never reward. As it also can damage the user. Never seen anyone kill themselves with blade barrage even when you made it possible to do so. Which is shatter bomb 2.0! When it lays where it lands it doesn't do damage on par to thunder crash or top tree striker. And the radius is poor a charged vortex nade from top tree nova bomb is deadlier then the super its self. Grenade kills need to proc devour on its own. As it seems that people are struggling to get it going so adding one more way to proc it wouldn't hurt it. Now feed the void and devour need to be combined into one perk. As there's two nodes that grant the same effect. Just different ways. Still can be proc'd through a melee kill or grenade consumption and still regen and restore health. Now insatiable needs to also grant increased melee speed, weapon speed and movement speed on top.of the grenade energy restore. For less punishing play on devour. Stays active as long as devour is refreshed on a kill. Voidwalker will need a new perk. The other issue i myself form time to time comes across is team shots, a kill you were hoping to secure would of kept you alive, or allow you to reset a gun fight. So I can see why it's hard for people to keep devour up. Devour health restore should also be instant there should no longer be a delay to it. As even if you win you'll die and lose your streak. Vs oem which is instant! Last but not least there's hardly any exotics to aid in using voidwalker. Your options are nezerac sin, astrocythe, and possibly karnstien armlets. But melee exotics really only benefit top tree dawn.Then the two obvious other options are tsteps and ophidans. While the rest still don't aid in voidwalker usage. Where's the ram? Or neutral game exotics for the class in general.