User blog comment:District3/The War of the Kingdoms/@comment-24787487-20140628190709/@comment-5480706-20140628191221

You have 0 defense while he has 4...

His atack is 3 which means you loose 3 HP since you have no defense.

Meanwhile he has 4 DP meaning your 10 attack points get divided into 2.5... So yah...