Arme would like to have a word with you, Riolu.
I do wonder what this character's weapon will be.
And the new fighting style. I guess I could think on it: possibly, skills that could be only activated by combos as they draw on, or if you use a certain move, Skill A or Skill B may be used, but not Skill C or Skill D.
But in a game like Grand Chase, this sort of system would be doomed to fail in terms of PvP. No one combos; they either skill, chain skill, or grab. Dungeoning, on the other hand, would make this sort of system fun and desirable.
Pinkie Pool's archnemesis: Oatmeal.