wont post here how it works since noobs will abuse this exploit to increase they stats, pm some innova employ for infos how it works
noone found such stack exploit in pts, i doubt that this is seriuos. you wont get answer pretty soon on forums, especially on holydays. however you always can try this: support.4game.com.
i don't know how this happend ) i just bought buff from rune , ported to pi and started killing mobs and notices i was casting way too fast i opend character stats menu and i was surprised to see my insane stats. i kept menu open as in picture but in a few minutes the efect disapeard with no system message. i play on core server, so yes this bug exists , i really don't know how i did it but for more experienced players i think there is no problem to make it :| uploaded with imageshack.us
dunno if this is really someting about buff stacking . i have a "hint" what can cause this , i remember doing something , gonna log now and buy enchater buffs and try it i can't do it again