Fierce Deity is believed to be that of a greater god, he is characterized by white hair, red and blue facial markings, a light blue robe underneath a metal breastplate, metallic gloves, black leggings, white pupil-less eyes, and great height and width standing at approximately 2.4 meters.

Because the Fierce Deity wields his greatsword, the Double Helix, with both hands by the sword's great physical power, reach, and ability to unleash deadly lightning bolts that magically burn the target with each strike.

It is not unreasonable to consider the possibility that the Fierce Deity is a Sheikah , a race that can be considered "divine" due to its great difference in technological development, given its name, it is possible that the spirit within the mask is a god. In fact, the Fierce Deity bears a partial resemblance to the Dark Trespassers who later became Twili. Perhaps it could be that the Fierce Deity was a war god that the Trespassers worshipped before being banished.....

Fierce Deity sat dormant beneath an ancestral tree with his Helix sword leaned on his shoulder, in deep slumber, waiting to be awaken and ever so prepare to unleash his wrath upon the wicked, for he didn't need words, he let actions speak louder behind the swing of his Helix sword...