"Elder Entity", known as "Elder God" ( (キュウ) (シン) Kyūshin) in the OCG, is an archetype of Fairy Fusion Monsters based on the Elder Gods from H. P. Lovecraft's Cthulhu Mythos, and is directly related to the "Old Entity" and "Outer Entity" archetypes, the three each being a subtype of the larger "Entity" series. Currently, its only support card is "Forbidden Trapezohedron". The archetype was initially released as exclusive cards for the Korean Booster Packs.

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