Aion Riftshade

hi , im struggling for long time with lannok gs drop .. i made a lot of runs .. and not yet the drop i want ! is this unlucky? or we should have at least a event for adma / bakarma drop event? its insane , bc i made more then 120 runs so far... and not droping what i need ! even yday i made 7 runs back to back and only saw 2 weapons... 2x tomes!!! pls fix this... i cant pvp like i want ... bc of 1 drop !