Spiritual Shackles

 Spiritual Shackles  was a Rank 1 mahō technique which allowed a Mahō-tsukai to use trickery and sheer will on a kansen or other spirit, sealing it within an object. Those who lived long enough learned that kansen could only be trusted to be untrustworthy—but deceit could be repaid in kind. Other spirits might also seek to wreak vengeance upon mahō-tsukai.