sample: a th8 lvl10 cannon which is surrounded by a pink/yellow wall will be destroyed easily by an incoming bking whilst a th8 lv9 cannon which is surrounded by full skulls will give that bking a run for his money before he can even get through the wall...
this happened to us during our last war, wherein our maxed th8 member got attacked and the last archer lv9 tower was inside a compartment and the only survivor in that raid was the opponent's lv10 hero...if not for having a full skulled wall his base would've been 3starred.

