So I've been thinking about the CC. It sometimes has loot in it. So why don't goblins attack it?
Could we make it so when there is a good amount of loot in the CC, it is targeted by goblins. Also if every resource building is gone (all mines and collectors) the goblins target the town hall because it has loot in it. I don't think it'll be OP because goblins aren't that powerful and people were asking for a troop that targets the town hall.

