Nosferamon

A supreme Undead Digimon that has conquered death. Normally, lifeforms in the Digital World are managed by a system that transfers their DigiCores to the Dark Area upon death to be judged for reincarnation. Nosferamon, however, is a unique Digimon that operates outside the boundaries of this system. When the life of a Nosferamon comes to an end, it can transfer its memories and consciousness into the bat-shaped crest on its hat. By engraving this crest on another Digimon, it can then transfer its soul to that Digimon. The DigiCore within the Digimon victim of this transfer is gradually overwritten by the data from the Nosferamon's soul until their body is completely taken over. Digimon engraved with the bat crest will eventually Digivolve into Nosferamon, inheriting all of their experiences and knowledge. It is theorized that Nosferamon's extreme curiosity, desire to understand all worldly matters, and obsession with knowledge gave rise to its ability to circumvent the laws of the Digital World. With its long rifle, Cereza, Nosferamon can utilize Rampage Bullet, an attack that fires successive homing projectiles to strike an opponent's DigiCore without missing a single shot. The defeated Digimon's past memories and experiences spill out from its destroyed DigiCore as so much data, which Nosferamon can then absorb through its mouth to gain new knowledge. It can also absorb data from a target by paralyzing it with Anesthesia Gaze—an invisible ray with tranquilizing properties fired from Nosferamon's left eye—and then directly biting its prey.