Defensive building idea( and possibly attack troops too)
There should be a third type of damage done by the buildings(or the troops) where instead of single target or splash damage there could be a rolling attack. An attack that hits all the troops or buildings in the linear path of the projectile. So that the troop it hits and all the ones directly behind it get hit as well. Possibly by the cannon because it has heavy-♥♥♥ metal balls being shot that just keep going. Maybe the amount of troops it goes through depends on the type of troop(giants vs. barbarians) it hits or put a certain limit on the number of troops it can pass through(maybe depending on the level of the building. Or no limit at all. This would further target troops in groups and lines
hahahaha troops in groups.
troops in groups