Roku Rokudo/Ratatosk

Ratatosk (ラタトスク Ratatosuku), or commonly referred by other spirits as Ragnarok (ラグナロク Ragunaroku), is the Origin Spirit of Akasha and the leader and most powerful Akasha Spirits; in which he was feared due to his overwhelming and destructive power by many Magicians. As the leader of the Akasha Spirits, most of them are highly respectable of him and even acknowledges about his true powers, although, Ratatosk himself never considered it as such. Ratatosk is the last spirit to arrived in the "real" world as other six spirits have been sealed.

Ratatosk is the last and the hardest spirit to be sealed by Keith Sajyou due to his aforementioned powers. He is currently wielded by Roku Rokudo and has took on Roku's family name as Ryuuto Rokudo (六道・リュウト Rokudō Ryūto) as he resides on the "real" world.

Appearance
Ratatosk bears the appearance of a young man at about 15 to 17 years of age, yet he is considered the oldest amongst the Akasha Spirit (although Zafkiel would probably older than him due to her time-manipulating powers) despite his appearance. He has messy and slightly spiky white hair down to his neck, slightly pale skin, and a heterochromia eyes: with a pale blue/azure right eye and a red left eye with a whitened pupil, a trait commonly shared with all the rest of the Akasha Spirits.

Spirit Powers
Akashic Records (アカシックレコード, Akashikkurekōdo):

Nox Nyctores
Gladius Caelestia - Ragnarök (天国の剣・ラグナロク, Tengoku no Ken: Ragunaroku lit. Heavenly Swords: Ragnarok):