Brand Heretic

Outside of combat, press your imbued weapon against the forehead of a creature to brand them with the mark of the heretic. This brand can be reversed through a 1 hour ritual using holy water and incense. At the DM’s discretion, an unjust branding can cause you to lose your oath.

As an action, you present your blade. For 1 minute, you know the location of any creatures branded this way within 100 yards.