Foxhead Medallion

Description
Silver Foxhead Medallion which has the ancient symbol Aes Sedai, the twin black and white teardrops forming a circle. It dangles from a leather cord.

Effect
All weaves formed of Saidar do nothing to the person in contact with this medallion. The wielder may still channel Saidar if they can though.

Perhaps Saidin as well? LoC CH 44. Halima (Aran'gar) seemed to channel at Mat.