There is nothing more to add really. The points already mentioned by Mira are the general conclusion of players having at least a decent amount of knowledge about the class itself while still keeping in mind other classes too. While the new classes got their fair share of a little bit of everything and most of the old ones too (or had just a great kit with buffs debuffs and cd management in general), kuno falls off, especially at pve to maintain her selfbuffs or lacking those as well (like already mentioned with accuracy selfbuffs). Although that is the case, it somehow pains me to see such a fun class being made mostly unpopular because the apm to trash value isnt nearly enough to compensate for it. There is nothing wrong with a class having high apm to begin with, but it should at least be possible to reach similar amounts of trash with it in pve as the top 5 classes (take garmoth.com as a refference). It's an easy principle of hard work should be paying off, ti should be rewarding and not leave you disappointed and having the though of rerolling/ tagging a class that can actually grind just so you can make money while not enjoying to grind on it. 

Another idea is to just rework Sah Spree of Sonan or completly substitute it with an entire different skill that is actually usefull. Take ninjas relativly new skill for example. The awakening shadow stomp they got is a good addition to the class ninja itself and gives you many oportunities to your gameplay while Sonan doesnt. its just a stationary instant loose ability now.

I dont want to add anything else, cause like I already said it pretty much got covered by Mira's post firstly and the others already tuning in.

Definitely sucks being forced to play a tagged alt cause its better. Wish/hope PA would look at the recent new classes such as woosa and maegu and apply that logic for PvE to other classes. I don't know how well awakening will turn out for those two in regards of PvE.

I grind with kuno a lot but I will say she's decent, not the worst but decent. Lately I've been feeling like playing woosa in places like jade forest since kuno feels kinda subpar there. And it is actually annoying playing kuno since I use 90% of my kit and the lamp still isn't dead by that time... Debuffing is also an issue as aforementioned in OP post. 

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So im not sure about this changing of flow:wrath to a whole new skill, im wondering if PA does read this forum can it be kept the way it is , put the new skill in place of sonan which would make a bit more sense since the skill is universally disliked ?