-important- Echo Of Hero Spam Glitch(Deagan, please Read)[No players needed to be reported]

I have noticed that when you activate the shadow skill and enter the free market rooms and come out, you will be able to spam the 'Echo Of Hero' skill if you place it on a keyboard hotkey and hold it. I was curious and I find that it will lure me to get banned. Is that a glitch?? P.S. the other players will not receive the skill and when you have low MP, it will get restored again. [Screenshot will be given when ready].