Dancing, I did the same as you. And due to my own oversight, I ended up with Godric on the 2nd week instead of the 1st, as I had planned. Spiritual Bond is the ability to place a necromancer's mark on any unit. When this unit is hit in battle, the necromancer recovers mana proportional to the damage. I usually place this mark on the most durable enemy unit, but you can also place it on your own. Therefore, after spending half a turn placing the mark, the necromancer receives almost "unlimited" mana. Neutrals are defeated not only without losing units but also practically without losing mana. In version 1.5, this ability is located in the center of the skill wheel among the racial abilities. In other versions, it is in the "Dark Magic" skill.