Undead can play this build as Necromancer Skills do heal them.Healing from Necromancer does work with Living Armour.Increase Necromaner if you want to gain more healing.Having someone in your group that can remove disabling effects works well with this build.Having high Constitution allows you to take many hits and gives you time to heal up via damage afterwards.
Use Necromancer and Warfare Skills to overwhelm your enemies while you heal yourself through damage.