I still need to try out Witch's Cauldron and see what the hype is all about. I have a hard time believing it isn't a worse Cult Master. I suppose -1 mana and +2 health is really, really significant for an effect like that, but for the really big cost of 0 attack and much worse cards than a normal draw? Forget Shaman spell quality, any type of random card is so much worse than normal draw.
I wonder what it is I'm missing.
It's a value engine. You can easily get 3+ spells off it. I dunno how good it is having only come across it once, but in the tournament match I saw they got... so many shaman spells including hex and earthshock so it made beating warlock pretty easy where without it warlock dominates that match up.