I'm not sure if the screen is cut off for some reason, or what, but I can't buy archers or wolves, which is kind of frustrating.
However, I really like the idea! It's a refreshing take on the "idle clicker" style game that adds a little bit of strategy. It's silly and fun, I like it.
I hope you can fix the archer/wolf problem sometime, becuase I'd love to be able to play a whole round.