Nightfall Feln

So, after the climb to Masters I've been playing around some with various decks, and while I have dropped in rank some as a result (currently in the 300s) I've been surprised how well I've done with this list at relatively high masters. Screaming back Rindra, Territorial Elf, or Impending Doom (often with Berserk) ends a surprising number of games just as your opponent stabilizes. Any thoughts or suggestions? Thanks all.