New Building: Watch Tower
The Watch Tower
Part wall, part defence. This 3 x 3 structure fuses in with walls and extends the range of nearby defensive structures. The Watch Tower looks like a LV 1 clan castle with a LV 7 town hall tower on the corner with an archer standing atop the tower. The Watch Tower does no damage, but like I mentioned earlier it extends the range of near by defences. LV 1: range times 1.1, LV: range time 1.3, and so on.
Simplicity Makes Games Great
This would make the game too hard, and I just can't see it as a viable option.