Revenants are a type of species in Final Fantasy X and Final Fantasy X-2, and are characterized as being ghosts. They tend to inhabit long-forgotten areas, such as the Cavern of the Stolen Fayth, the Omega Ruins, and other areas such as the Farplane. Their signature attack is Doom, which puts a countdown on its target, and at the end of the countdown, the target is instantly KO'ed.