by heightening health defense heightens as well if your heighten attack then damage will heighten as well so naturally you either have high attack and damage and low hp + low defense and vice versa ^_^ plus if your defending base you will most likely be put in a 1 on 1 predicament and when more than 1 come to your base your job isn't to fight them its to close the gate to hold them long enough until your teammates come and help