This card is so good. I've seen it slotted in alot of decks. So far it's common in Priest, DH, and Mage decks. Has anyone else experimented with it? so far I'm trying it in a dragon druid deck and it's not bad there too. Just sucks to get Savagery, but all other 1 cost spells are pretty good to get off this.
I used to run it in my HL Control Shaman as 1-mana Shaman spells are also pretty good. Eventually though I first replaced it with Cobalt Spellkin (2 spells = more value and more chances to hit some sort of silence) and finally I stopped playing the deck as Shaman is pretty weak (it was just good at destroying Paladins)