The Osmium King was a proto-Hive who ruled the continent called the Osmium Court on the gas giant planet Fundament. He had three surviving daughters: Xi Ro, Sathona, and Aurash.[1]


By the time the Osmium King had reached ten years of age, a lifetime for the short-lived proto-Hive species, he had become senile and insane. In his madness, he locked himself in the Royal Orrery and obsessed over the orbits of Fundament's 52 moons.[2]

Taox, a sterile Mother and the teacher of the royal offspring, knew the Osmium King's death was imminent, but feared that all of his daughters were too wayward and weak to ascend to the Osmium Throne and rule effectively. Secretly, she invited the rival Helium Drinkers of the Helium Court to invade the Osmium Court, assassinate the royal family, and make her regent of the continent under Helium King.[2]


  1. List of Grimoire Cards/I: Predators
  2. 2.0 2.1 List of Grimoire Cards/II: The Hateful Verse
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