MArcomage

I think you should lose Warchief for Crugg the Destroyer. On the other hand, I see my suggestion might not be ideal as Crugg would make enemy tower -48, but it matches better with the concept of this card (I'm comparing with General's Hand here)

EDIT: Otherwise maybe you could give a Recruits boost to yourself, as you would need at least 100 recruits before playing Devastator and then Urk the Conqueror.

Great card! But I think Thor or at least Rage of Urk should come instead of Urk the Conqueror.

A chance to actually make use of those excellent -wall abilities? I like it!

About Crugg and Thor: I don't want to add cards that attack directly the tower, it's against the card flavour.
About Rage of Urk: it can be used at it's full power because it's the only frenzy in the hand.
'cause we don't have another Frenzy Barbarian.
Yet.

Well, barbarians are one of my favourite set of cards and I've never played Rage of Urk for its frenzy keyword. I actually didn't even notice that it existed :P

Apart from that, neither Urk the Conqueror comes to its full potential in this situation because after Reunion, the next card you most likely will be playing is Devastator doing 120+ damage, so possibly there will be no wall there for Urk to destroy. Also I think that Urk the Conqueror is the most worthless barbarian card in the game :P