Methusula

Methusula (メススラ, Mesusura), referred to as Methusula of the Deep (カイコー ノ メススラ, Kaikō no Mesusura), is an ancient, serpentine Familiar Spirit in union with Iren Warldov, the Lord Commander of the Royal Guard of the Kingdom of Fiore. Methusula is, by all definitions, of a more primitive era—his existence stretching back into antiquity, over a millenia ago. Methusula was present when the current Familiar Spirit King's vast reign was still in its' infancy. At some point, he was banished from the lands of the Familiar Spirit World for unknown reasons. Like the illusive Zerefic demon, Jötnar, he is tied into the history of mankind as a monster of legend. Methusula's massive size and foreboding appearance have made him something of a being not to be trifled with for Familiar Spirit mages abroad. However, Iren was and is the first human to make a contract with him successfully, the others had been devoured by the beast in mere moments. While the creature holds no cares for Fiore's King, he has seemingly the utmost respect for his partner.

Trivia

 * His appearance is based off an unnamed beast from the manwha, Paladin.
 * In terms of personality, Iren and Methusula are opposites.
 * The name "Methusula" is a spin off of the name Methuselah, a biblical figure that was said to live to the age of 969 years and was the grandfather of Noah, the last of the antediluvian Patriarchs. The name Methuselah, or the phrase "old as Methuselah", is commonly used to refer to any living thing reaching great age.