Quote Originally Posted by 'elsegundo',index.php?page=Thread&postID=177034#po st177034
if a mob runs, it means he's dying. use hammer of wrath.
That depends. Since you are multiboxing, there are a number of ways to deal with a runner. Personally, I just let the warlock/priest DoTs finish it off. If that doesn't do it, then the incoming Shadowbolt/Fireball/Mindblast combo should do the trick.

PS- thanks to all who have contributed info and links. I'm just starting to quest in Northrend with an eye towards instances (both Outland and Northrend) and this will help immensely.