Sub has too many Energy regen passives and Talents. Things like Enveloping Shadows and Deepening Shadows just need to go. This would help with scaling issues, and the spec would still have enough tools to handle resources.
I have to disagree here. Sub doesn’t need more buttons, it just needs to have the abilities it has feel meaningful. This starts with returning Shadow Dance into a CD, and no mechanics to reduce the CD either. With a more limited use for ShD the ability becomes a choice, instead of just part of the rotation. This would also allow for your basic abilities outside of ShD to be balanced easier, which would mean Backstab could actually deal some damage.
I don’t think anyone really “likes” Gloomblade. It’s nice to use for Solo play, Questing and such, but it doesn’t really feel any different from Backstab. Why not put Hemorrhage in its place? This would be a talent to significantly modify your gameplay. It could be tweaked to interact and trigger Find Weakness, since it seems Blizz wants to use that mechanic for the spec.
Looking at how many specs are getting to use more weapons again (Frost DKs and Windwalker Monks with 2-handers, Fury with Single-Minded Fury), I think if nothing else, transmog options should be opened up, so that you aren’t aesthetically limited to just Daggers. However, it’s mostly an itemization issue, so there’s no big technical issue why Daggers have to provide different damage, than other 1-handers.
I think Garrote could be baseline for the Class. If Shadow Dance was a CD ability, this would also help with the potential OP-ness of the multi-Silence in PvP. Gouge and Smoke Bomb should also be made baseline for the whole class, as they give great utility and are just fun to use. I could see Gouge nerfed to not award Combo Points, as that’s not what it was used for anyways.
I think making Shadow Dance into a CD is key to making the spec feel good again. It would allow for better control on tuning and balancing abilities, which in turn would give you feedback when pressing a button. Having a more limited use for such a powerful ability would also make it into a meaningful choice, instead of just part of your rotation.
Symbols of Death is basically the same as Vendetta, without the restrictions. However, due to its low CD it’s essentially a maintenance buff, instead of a fun ability, that you strategically use. I also feel Shadow Blades is just a poor fit for Sub.
A more elegant and fun way to play would be to turn Symbols into a true CD ability, so buff the damage and duration while increasing the CD, so it would truly be Vendetta without the 1-target penalty, and in turn remove Shadow Blades and give that to Assassination, which then wouldn’t need Vendetta. Blades could just be renamed to Poison Blades or something, and have it deal Poison Damage, instead of Shadow, to fit better thematically.
One big reason in favor of removing Shadow Blades from Sub would also be with balancing damage for the spec, allowing for Shadow Dance to be buffed and turned back into a CD, and having less GCD issues, when looking at burst windows. Sub would be able to get faster into damaging, without having to spend 7-10 seconds setting things up first.