Exodia Necross is a powerful monster card in Yu-Gi-Oh! Duel Monsters, associated with the legendary Exodia theme. It is depicted as an undead, corrupted evolution of Exodia, created through dark ritual-like conditions rather than being a conventional character. In the series, it serves as a sinister trump card used by its wielder to gain overwhelming strength over time, embodying sacrifice, endurance, and forbidden power. Its role is primarily as a dramatic duel threat and a symbol of dark strategy.