Iconography
As mentioned above, Wisdom Kings are usually represented as wrathful deities, often with blue skin, many arms, sometimes with many faces, and even many legs. They hold weapons in their hands and are sometimes adorned with skulls, snakes or animal skins and wreathed in flames.
A notable exception is Mahamayuri (Ch: Kǒngquè míngfēi 孔雀明妃 or Kǒngquè fómǔ 孔雀佛母; Jp: Kujaku myo-ō 孔雀明王), the "Peacock Wisdom Queen", who is usually presented with a peaceful expression. She is easily identifiable as she usually rides a peacock.
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