I have no clue how you managed to beat heroic nef with rush decks, when he has plenty of armor up spells, did he just not draw flamestrikes and swipes? eventually, I beat it with apprentice mage after some RNgesus and getting lucky counterspell topdeck when he was about to flamestrike, but that fight was PITA, Id probably take drakkisath over this one... but I have to admit, the warlock discard tactic sounds like a cool concept.