So, I wanted to kill the Nazgul in The Morgul Vale just with repeated Infightings, and by golly, I did it.

I know it sounds crazy, but perhaps the less-experienced deckbuilders out there might derive some benefit from my thoughts on how to tech against a quest, even under my absurd constraint:

http://ringsdb.com/fellowship/view/1036/the-morgul-vale-mission-improbable

Obviously, stay away if you're a One Deck to Rule Them All kind of player, heh.