Hmm, it still sounds like they should be used more often. If you’re falsely accused and about to be condemned to Azkhaban, wouldn’t you sacrifice a portion on of your magic if it could compel your accuser to confess? As corrupt as the Wizengamot is, it should still happen on occasion.
IIRC unbreakable vows require some large, permanent sacrifice of magical power and as such are fairly rare in HPMoR.
You’re right, I remember now.
Hmm, it still sounds like they should be used more often. If you’re falsely accused and about to be condemned to Azkhaban, wouldn’t you sacrifice a portion on of your magic if it could compel your accuser to confess? As corrupt as the Wizengamot is, it should still happen on occasion.