Servants
The benefits of having Servants as part of your Army in Nightmares RPG can be discussed here.
The following standard percentages apply:
Att:0% Dam:0%
Servants are bought for the use of magic on the battlefield. If you do not have a servant then you cannot use any magic.
I have made an additional function for Servants and that is they are specifically for magic and not outright combat. Once you have purchased a Servant then you will be able to also buy magic abilities.