Many people mention keleseth, edwin, vilespine and bonemare as great possible targets for this affect.
But let's not forget, you actually need to DRAW them, than PLAY them, than they need to SURVIVE a turn and you need your opponent to have something on the board that you can TRADE them into.
That's 5 things that needs to happen and the last 2 are things you can't fully control (and sometimes you don't even want to suicide your own minions), so basically it's an extremely situational card, that can't survive on the board for long because of her low health, and cannot be played on a losing board (or even empty board).
The real value is cycling high attack charge minions.
Imagine having a Reckless Rocketeer on board and playing this, than trading into the enemy minions. It's like deal 5 damage to a minion for 1 mana, if the minion had 2 attack or more put it back in your hand.