So I ran across this post on the forums regarding the last boss in Dark Delvings – probably the hardest 6 man fight currently in the game. Lotta stuff going on in this fight, and it certainly is really challenging – I’ve done it on a few toons but haven’t done it lately on my warden. Good read and good tips for this fight and others in general actually.
http://forums.lotro.com/showpost.php?p=4033623&postcount=7