DATA + APPEARANCES
-Monster Category: Demon
-Key Relationships: None
-Unique Attributes: Instantaneous healing factor
-Most Monstrous Moment: Killed Adja the Vampire Slayer
-First Appearance (Comics): Buffy the Vampire Slayer #26: "The Heart of a Slayer Part 1" (Oct 25, 2000)
-Other Appearances (Comics): Buffy the Vampire Slayer #27: "The Heart of a Slayer Part 2", Buffy the Vampire Slayer #48: "Note From the Underground " (cameo), Buffy the Vampire Slayer #50: "Note From the Underground" (flashback)
-Current Status: Deceased
Karfarnaum was a demon assassin from the eleventh century, sent into the future to kill the Slayer of the 21st century, Buffy Summers and then disappear without a trace. Surprising Buffy in an alleyway, Karfarnaum nearly killed her, had it not been for the timely intervention of a previous Slayer from his era. This Slayer, Adja, had traveled through the centuries by magic to slay Karfarnaum. Karfarnaum later tracked Buffy and Adja through his heightened sense of smell to Buffy's Watcher's house, where he proceeded to complete his mission. Buffy and Adja managed to get the upper hand and knocked him through a wall into one of his vortex portals. Determined to put the demon down, Buffy and Adja patrolled through the Sunnydale Park, where they fought Karfarnaum for a third and final time. In order to quell the beast, one had to have the heart of the Slayer. Believing Buffy to be the savior of mankind, Adja willingly put her life before Buffy's and died, along with Karfarnaum's, whose life ended upon completing his task - eliminating the Slayer.
POWERS + WEAKNESSES
Karfarnaum's mystical powers allowed him to instantly heal from any wound inflicted, and could also create portals to travel through time at will.
Karfarnaum displayed no sign of actual defeat, but could be slowed down. The only way for him to die was to kill a Slayer.