Caress of Fu Leng

Caress of Fu Leng is a mastery level 2 maho spell which corrupts jade. The powerful spell is the only known way of corrupting the pure substance other than long exposure to the Shadowlands. The jade undergoes a rapid degeneration, becoming soft and black. Malicious Maho-tsukai often cast this on Crab scouting parties in the Shadowlands. Jade from the Spirit Realm Tengoku and even some powerful jade nemuranai are immune to this spell. (3E p. 269)