I thought this card might be getting too much hate until I realized that it makes all lackies cost 0, all pogo hoppers cost 0, all minions reduced by pocket galaxy cost 0, warpath just becomes insane, it's like a free sorcerer's apprentice for your opponent. With decks like cyclone mage and shark/pogo rogue around this can never be played.
Unbelievably punishing. Giving a discount on the first card played each turn would have sounded a little fairier. That way it's just downright unplayable and a game-wrecking outcome of any 3-mana minion spawning mechanic (I'm looking at you, new warlock vulture minion...).