Origin

There has been an on-going war between the Betans and Megans for centuries in which they have been using the services of war-monsters. The Megans had plans to conquer and plunder the planet Earth and unleashed three of their most powerful monsters called Rhiahn, Triax and Krollar. The monsters landed on the outskirts of Salt Lake City and battled Godzilla and Red Ronin. Rhiahn was a biomech monster that used his anterior bio-blade to decapitate Red Ronin. However, Rhiahn was defeated when Godzilla killed him with his own bio-blade.    

Creation

Rhiahn was created by Doug Moench and Herb Trimpe in 1978 and first appeared in Godzilla King of the Monsters # 12.   

Powers & Abilities

Rhiahn was a gigantic biomech monster which was a living creature with some parts of their bodies functioning like a machine. Rhiahn had a bio-anterior tale that he could spin so rapidly that it provided him flight and it also functioned as a powerful saw blade. Rhiahn had a clam shape head with a powerful bite and hook like hands to slash and tear. Rhiahn had superhuman strength, durability and resistance to injury.