I've been agreeing with most of your ratings so far, but did a double take when i read this review. This card is like the love child of Cult Master and Shadow Caster, and it has the downsides of those cards: You have to have a board of minions you want to kill off/duplicate. Anytime you are behind this will be a dead card. I do think this card will see some play, i highly doubt it will be "auto-include" in any decks.
Does a tempo rogue deck want to play a 3 mana 2/2 in order to extract more value? Seems like that deck will want to play bigger minions in order to kill the opponent faster,
