The thing about Argent commanders, is that it's almost always a 2 for 1 card. Kill some 4 health minion and then the opponent wastes a card to kill the remaining commander after bubble pops. You will find your opponent deck his hand faster when you play these guys, trust me.
Naturalize I usually don't have to use unless I really really can't deal with some situation. I've been holding 2 in my hand most games AND still winning. That's the reason i dropped one.