In the Cthulhu Mythos, Yidhra is a powerful Outer God. Yidhra is also referred to as, The Dream Witch.
Appearance: Yidhra prefers the appearance of a beautiful and seductive woman, however very few people have seen her true monstrous form.
Lore: Yidhra came to the planet before life evolved. She is worshipped as a goddess by her followers. Yidhra's cult is world-wide, with factions located in the United States in Texas and New Mexico.
Powers: Yidhra's powers are vast and include shape-shifting, thought projection, and the ability to provide bountiful crops and healthy livestock to her worshippers. When Yidhra devours a lifeform she acquires the ability to shape-shift into that creature, or to reproduce bodily parts of that creature. Such quality is similar to the monster in John Carpenter's The Thing. Yidhra can bestow a form of immortality upon her worshippers, by merging with them. Such quality is probably the same as her ability to reproduce any quality of an animal after ingesting them.
Defense Against Yidhra: Practically none, save the Elder Sign which repels her.