i was just about to suggest to add more creatures in buildings.maybe a guaranteed 2 stacks of something....i have more than 4 buildings where only 1 stack of some lvl 4 creatures are there....just wasted a lot of wood piles .also i have lack of creatures because of this . add more types of creatures in building and at least 2-3 stacks per building...is not like woodpiles are growing in trees
you have to beat 10 enemies to get just 1 ....