The Silver Hand Recruits are random, like any resurrection effects (N'Zoth, the Corruptor, Mass Resurrection). The effect is limited by boardsize. You need to hold this for quite a while for it to be worth it.
What are your thoughts on balance? I mean an aggro deck wouldn't complain about their 3/2 turning out to be a 6/2 instead, but a control or value deck will be sad about a Ysera or Blastmaster Boom turning out to not have any (Battlecry) effect, so should this minion be bigger (and therefore more expensive)? It is a pretty good removal tool by itself^^