Kumo (TCG)

Kumo were the spirits of shape-changing spiders of Sakkaku, who dragged their slumbering victims to their lairs in Senkyō. Celestial Realms, p. 10 They fed off the negative emotions of living beings. One of these creatures bound itself to the Daidoji family, and the family's feelings of anger and vengeance allowed it to grow to a massive size, and it became known as Daikumo-no-Kami, the Great Sea Spider. Courts of Stone, p. 71
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