The Lifestone is a small, yellow piece of meteor rock discovered by Doctor Douglas Birely. He found the sample inside a dormant volcano in the Aleutian Islands. Radiation produced by the Lifestone caused severe biological mutation and was instrumental in transforming Birely into the super-villain Doctor Demonicus. Demonicus used the Lifestone's power to create powerful, monstrous entities such as the bat-winged Batragon.

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