Where do you put the reward you gain when attacking Draco/zombies?
Just got the answer straight from the Publisher on BGG:


  If you have a container, straight there. If you don't it goes on top of your Town Hall and has to be used this turned otherwise you will have to discard it!
  Indeed, it means that this resource is vulnerable to an attack this turn. Unless you have a defense and that could be a nice lure