I told you about it, It was fine till update 1st update after 1.3 release. +-200k Exp for killing that boss. (9 people) w/e now its blue for me, so i don't care much
in 1.3 update it should be changed (nerfed) like on offi https://l2central.info/classic/Гнев_Вампира_-_Оракул_Шилен "has chance to recover 6% of damage in mele combat" https://l2central.info/classic/Напев_Вампира_-_Вестник_Войны same to chant of vampire. "has constant chance to transfer x% phisical damage inflicted to enemy into HP"