The real main issue with Nova bomb is its ability to be destroyed very easily, it is the only super in the game that can be destroyed before you even fire it off or it being shot out the air by an enemy projectile. It needs more than just some damage buffs, it needs QOL as well.
Nova bomb will continue to be a trash PVE super compared to others as long as a mechanics like this persist. No other Super has so many QOL problems, its ridiculous. It's already an incredibly annoying to use super, in PVE and we aren't even talking about the mediocre damage numbers or add clear.
You have to worry about so many things, whiffing in smaller spaces or clipping on some unforeseen corner geometry thanks to the jump, killing yourself and of course as mentioned above the biggest issue, it getting destroyed often and easily by mobs just aiming in your general direction.
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It's problem is also it has nothing like Cuirass of the Falling Star, Pyrogale Gauntlets or Star-Eater Scales to make it better. Bungie give that quality of life to the other classes and expect warlocks to just keep playing support by giving little to no dps variety. Notice there was no mention in their essay of frickin CHAOS REACH? I did... I'd be mad if I were surprised anymore at how little they care about the warlock class. We literally get sunsinger 2.0 in TFS while the other classes get cool new stuff. Whether they're good or not, at least it's new...