the quest Betrayal that you get for from Stefan at Ebon watch has a very very fun exploit that enables tons of greifing fun -)
so what you do is start the quest chain from stefan at ebon watch until the last quest, Betrayal, is given.
then go to Drakuru, and wait for an alliance to speak to him. if the alli disappears, then hes on the same one you are. talk to Drak, get tele'd up to where the alliance is, his quest scenario should already be in motion. rush over and zap one of the bigass trolls with your scepter, get him under your control.
youll notice you cant hit drakuru, hes still your buddy, but you can attack the alliance -)
he f'n one or two shots em half the time lol. its awesome. fun stuff. enjoy -)
btw, sorry about the horrible punctuation and caps , blah blah. im lazy.