Dint feel like making new topic, but would a burst skill for mnk be to OP

If anyone played ragnarok online, monks there are mainly fast attack combo system like here too but by sacrificing all their MP they can do a massive burst damage


Maybe in here we could sacirfice all gl3 stack (or gl4 if my wish comes true for hw) and use them for one big burst

To balance ot maybe make is so after youuse that attack you cant gain gl stack for 30 sec or somethong