The fossilized remains of a Thunder Marsh Jellyfish form a natural, giant Thunder Rune. According to Rune Study research, its fossilized Rune is believed to be the origin of all extant Thunder Techniques in human civilization. The largest known fossil is located in the Zhengguo Thunder Marsh.
The Thunder Marsh Jellyfish is an extremely docile, super-giant Spiritual Qi creature from Ancient Times. It typically lives in the Shallow Sea, feeding on sunlight and various types of Spiritual Qi algae and plankton. It is not sapient and cannot communicate. Its use of Spiritual Qi is extremely simple, but its physical size and strength are terrifying. It shows significant potential for bio-electric power generation. Classification: A-Class Low-Level Demon Fiend. Recommended Action: Farm in enclosed sea areas.
