Another random thought, and thank you for reading these. There should be a self destruct feature on the builders buildings. Let's face it, is small and has little HP, and it's the size of the big bombs. It would cost 2x/3x more to reload for obvious reasons and we can only do it to 2 of the biuldings just to make it fair.
PROS
- enemies will have to attack the trap and more of them will get closer before it explodes
- we have a reason to put them on the inside of the walls
CONS
- it could damage other buildings/walls around it
We won't hurt the villager because he/she is already gone from the building



