I know he doesn't get much love, but I just played Nightmare Dol Guldur with my gaming group the other day and he became a beast with the following attachments--Spear of the Mark, Unexpected Courage, and 2 Dunedain marks (+1 attack each). With this combo he attacked twice per turn, smashing stuff in the staging area most efficiently at an attack of 7! My deck consisted of Éowyn, Théodred, and Dúnhere for some Rohirrim synergy--my friend was playing Théoden, Éomer, and Hama, for the thicket-of-spears recycle win.
Only problem was I had hardly any cards because of that darn treachery card that drains them, and I was sitting on zillions of resources I couldn't use. Should've included campfire tales. But we still won, so we were happy.