W/Mo Which is the best armor to farm ghial's staff

Hi, i'm trying to farm that staff but he hava always 2 ritualists near him, and i can't kill him, neither the ritualist.

Which is the best armor to take, what runes to use, etc...

Thanks guys

lol don't c how u could have missed it because it's on the 1st page when u open the farm section.

anyway -------> http://www.guildwarsguru.com/forum/s....php?t=3051542

gl