Sabunak「サブナック」 is one of the Three Nightmares along with Salos and Sitri and one of the main antagonists of The Seven Deadly Sins: Grand Cross original story arc, Catastrophe: Sacrifice.

(First time doin a character might do one about the three nightmares together but it'll take a whole while since the characters are so vague. Regardless I'll still try)

(Ps. I tried looking for a fanart for her but that's like finding a needle in a haystack so I ended up snapping a screenshot of her game artwork instead.)