Talk:Pirate/@comment-114.142.169.7-20190222005623/@comment-36076053-20190222062832

Neither of them costs any MP on cancel. The MP cost is usually only processed once the ability is actually fired, but these skills have a longer "casting duration" and it's during the casting that it can be canceled. The main downside of canceling is that you go through the casting animation for nothing, so it means you're vulnerable during that time and you'll have to become vulnerable again the next time you cast it.