Personally I think Yogg just needs to be less playable in all but the most spell heavy of decks. I like the idea that if somebody can hold out to turn 10 in a very spell heavy deck, then they have a chance to come back by playing Yogg Saron. I don't like it if somebody has played 5 spells the entire game and gets lucky, then they can clear your board and summon huffer (along with Misha and Leokk).
Make it so that Yogg has a minimum spell threshold trigger, and make it high (something like 12-15 spells). That would be my first suggestion to look at.
Make it so that Yogg has a minimum spell threshold trigger, and make it high (something like 12-15 spells). That would be my first suggestion to look at.