Binding Oath

A magic spell that creates a binding oath of specific terms between two people or a person and a group (ie. pledging loyalty to a cult or pledging fealty to a leader). After the spell a small sigil/brand is burned onto the targets body and they cannot break a set agreement of terms. Upon breaking their oath (4th level)they are rendered prone, take a d10 psychic damage and have been mind wiped of all memories of the oath and anyone involved with a 3 day grace period on either side. If cast at 6th level or high and the oath is broken the target takes 3d10+level psychic damage and reduce their overall hp by the level the spell was cast at.