in alliance wars, when you start beating stronger defenders, the defenders can suddenly do things they aren't suppose to be able to do, plus suddenly they can dodge or block every shot, even special attacks. and when they should be stunned, just as you try to attack, they can block and stun you or avoid your attack. they can start to do one thing and when you have the counter, it will stop and do something different. they can move out of the middle of an attack where you cannot do.