I think this would add an interesting aspect to the whole "farming" part of the game. Several conditions would have to be met:
- You must achieve 100% destruction.
- You must have a builder available.
- You can only harvest a relatively small amount of obstacles (time based perhaps?)
- Disable the feature if you're attacking too far below your level (1 or 2 town halls below, speculative) to avoid abuse
It could make regular attacks/defenses more exciting if a small number of potential gems was at stake and would encourage players to build more expansive armies to ensure 100% on a base instead of simply sniping town halls or farming collectors/mines.
Discuss.



