The Class System
The Classes
Guard
Guards specialize in defending and taking hits. They usually have high Block, HP, and Defense, but low Attack and Attack Speed.
Vanguard
Vanguards specialize in building up Cost. They typically cost low Cost to deploy, and usually have Skills that increase your total Cost. In addition, Vanguards gain 1 Cost whenever they land the killing blow on an enemy, and their Cost amount is refunded when you manually retreat them.
Healer
Healers, of course, heal your units. They are usually unable to damage enemy units. They heal by the same value as their Attack and Attack Speed. Just like how some units are able to damage multiple enemies in one attack, some healers are able to heal more than one ally in one heal.