(Chaos VII) Ultrastorm Leviathan

Lore
The Leviathan sensed the birth of another life form with the same immense strength, but bearing the absolute might of justice. Instinctively, it knew that was the only being which could finally give release from its ever escalating madness.

Acquisition
Evolve (Chaos I) Ultrastorm Leviathan with Leviathan Catalyst six times.

Name origin
Leviathan is a creature with the form of a sea monster from Jewish belief, referenced several times in the Hebrew Bible.