Curse of Naxxramas Ep19 - Baron Rivendare/Four Horsemen

The final boss for normal Military Quarter is actually a bit of a challenge.

Removing his starting minions is the only way you're going to win. He lacks any other minions (from what I saw) but makes up for it with tons of removal. I think a number of decks are viable, but you must have a way to efficiently remove the minions (which are 1/7) and still provide threats that can end the game. I'd think that silencing all the horsemen would remove his immunity, making things pretty easy...