Even zoo can use this.. play this card, possibly discard leeroy, grim rally this and get 2 leeroy.. pog
Since the only thing Zoo has going for it is Life Tap to draw the resources that are in its deck, I'm rather pessimistic about this.
Zoo is a non-competitive deck right now. You won't find it in either GM's or Masters.
Zoo needs to grab the board and hold that board. Once upon a time, it could do that against other aggro and midrange decks. Now, there are too many other board centric decks that can beat it off the board, and Zoo has no comeback mechanisms. Zoo needs solidly stated minions to return to its former state. A 2-mana 2/1 isn't gonna cut it.