The game is way beyond the power level of that card..
Curves pretty well from Mad Genius, foe reaper for sure is coming back
When he ws relevant to actually come back? He has nice synergy with new Boom but thats it. As DoubleSummon said, the game powerlevel is way beyond that card to be actually run in the deck. As a situational discover option? Sure As a part of your 30 card deck? Hell no.
This seems like it would fit into a tempo/midrange deck if it cares about rush, but at least off the top of my head I can't think of any smaller minions that you would want to give rush to so I don't see a use for the card. Later in the game, your mechs would have rush already from Dr. Boom or otherwise, you're playing a significantly smaller minion because you're spending 2 mana on this card.
Arcane Missiles --------> 2 mana deal 3 damage split among enemies and draw a card.
You know it will happen.
I'd be perfectly happy if they made more of these types of cards, it lets you have more consistency in your decks, i'd especially like it with Shield Slam so you could make a more armor focused control warrior and not rely on Execute, would probably have to cost 3 mana though