While i leveling my little pyromancer. I see this guy do …thing that normal player can do (https://www.youtube.com/watch?v=h1sVgR9UXZ4)
If he hack where i can report this thing? I think this not fair for other player that play in normal way 
EDIT : where i found him : Tenet garden Ch.4 Server Orsha
when : around 00.26 a.m. (UTC+07:00) 09/04/2016
thank to Nyuha for notice me 