Dark Necrofear is a Duel Monster that serves as the spirit partner of Naruto Uzumaki starting with Season 16 onward. Dark Necrofear first appears during Naruto, Jaden Yuki, and Zelda's duel against Nightshroud and provides encouragement. Later, Dark Necrofear helps comfort Cyber End Dragon after the death of Zane Truesdale.
Despite its appearance, Dark Necrofear is a kind spirit. Dark Necrofear acts like a mother to the other Duel Monster spirits, as it tried to comfort Cyber End Dragon after the death of Zane Truesdale.