Your Twirl skill recovers u MP per hit. Mix some of those in and you should be good. At least I don't have problems :)

Twirl III

← + LMB or → + LMB

Attack 1 damage 480% x1, max 26 hits
Attack 2 damage 480% x1, max 35 hits
Accuracy Rate +7%
Maximum 7 targets
Recover 15 MP per hit
Damage -30.4% in PvP only.

The thing is I can't manage to use the Twirl III skill.
I can only try it clicking on the 'K' menu, but can't add it on the slot bar and nothing happens if I do "A + LMB" or "D + LMB", nor "← + LMB" or "→ + LMB" (just to clarify, I've not changed hotkeys and such). I just don't understand why.
Moving the mouse cursor above the Twirl III button skill on 'K' menu, it says 'can be used with your sol'. I don't know exactly what's a soul, but I should be able to use the Twirl III at level 29. Just don't know how to solve my problem, hope you can help!!

Just to check: you haven't by any chance locked the skill by accident? In other words, is there a lock symbol on the right corner of the skill button when viewing it in the 'K' menu like this?

Sol is Shai's "awakening weapon" and is something you will get later :)

Already checked of course, thank you: no locked symbol there. That's one of the first things I checked. At this point, what could be the problem?

Hmm, sounds weird. So your Shai ain't doing anything if you press left/right + LMB?

On top of my head I can only think there's not enough stamina left for the skill or weapon durability is too low (although not sure if this affects Twirl) but these probably are just fine.

Hi there,

Even though you did not change keybinds, please check your keybinds for "Draw Weapon/Atttack". My LMB mysteriously became unbound after accepting the Awakening quest on a Corsair. Not the same class but the principle applies. Hopefully you can get down to business on your shai. Good luck.