Oath of Arnis

Divination
Tier: 2
Components: None
Casting Time: 1 major action
Range: touch
Target: creature touched
Duration: Permanent until discharged (D)
Saving Throw: None
You smile as you seal the deal. You will not be cheated.

You can cast this spell when you make any formal deal or agreement with a creature. You know instantly if the target ever breaks its word. Additionally, a visible mark of your own design appears on the target wherever you touched them to deliver the spell.

The spell is traditionally delivered with a handshake, or by touching the forehead of a kneeling creature.

This spell is tied to your magical power: the oath reduces your spell point maximum by 1 as long as it persists, and the spell ends if you die.