Leviathan

 '' I thell ye, it came from the sea. Glorious as the sunset, and shining like beaten gold and silver. Saved me wife and me children from the wreckage of me sinking ship. As it exhaled trough it´s breathing-hole, the winds calmed and the sea turned still as the surface of a mirror. No ordinary whale that. '' – Unknown sailor

Summary
Leviathan is a demigod summoned by accident by Richard Tugger in an attempt at summoning a dolphin in the campaign Hunt for the Memory Stone.

Physical description
As leviathans chance of being summoned was under 5 percent, he is a most glorious creature. His back is of pure, beaten gold, and his belly is of shining silver. Most distinct is his single horn. This bodypart is of flawless diamond. Leviathan is estimated to be around 25 meters long, which makes him almost as big as a full grown blue whale (Which can grow up to 30 meters).

Physical abilities
As Leviathan left his summoner after rescuing him from the sea, no mortal has ever been able to test what he is capable of. Richard Tugger also lost his ability to control leviathan, as he is half god, and cannot be controlled by ordinary men. However fishermen and traders have stated the the Inbetween strait, the sea between the Sun Continent and Aseidia, has become more stabile and calm in the years after his summoning. It is unknown whether Leviathan has anything to do with this, but only a creature of god-like power would be able to change the ecosystem to such an extent.