Covenant (OES)

You and a willing creature that can see and hear you within range enter into a magical agreement. The agreement can be one-sided, an equal exchange, or anything in between. Until the agreement is completed, both parties are marked with a symbol of your choice. Either party knows if the other fulfills their side of the agreement, and when both sides of the agreement are fulfilled the spell ends. The spell also ends early if you cast this spell again, or if a creature willingly breaches its side of the agreement. If a creature ends the spell or has another creature end the spell before it fulfills its side of the agreement, or if it willingly breaches its side of the agreement, the mark brands its flesh with a permanent scar until healed by magic.