Necromancer (Circle of the Moon)

The Necromancer (ネクロマンサー) was one of Dracula's minions in Castlevania: Circle of the Moon. Its primary form was a cloaked individual similar to Shaft's ghost, although its true form was a winged skeletal demon.

Character's history
After Dracula's successful revival, the Necromancer was presumably dispatched to verify whether Hugh Baldwin and Nathan Graves had died from the fall. He eventually encountered the latter in the Audience Room. The Necromancer, surprised and impressed that Nathan survived such a steep drop, nonetheless stated he won't be lucky against him. He then informed Nathan that Morris Baldwin was now within Dracula's grasp, and they intend to drain his soul from him on the full moon to restore Dracula's power. A horrified Nathan then fought the Necromancer and ultimately defeated him. Armed with this knowledge, Nathan then attempted to locate his master, although he noticed that Morris was missing.

Boss battle
The first phase of the battle has the Necromancer using his six orbs to attack Nathan, and can at times summon Zombies.

After his first form is defeated, the second phase begins. He forsakes the energy orbs from the first phase and replaces the attack with a green barrier that he bounces against the room with. In addition, while he still summons enemies, the enemies he summons in this form are skeletons.

Trivia

 * Interestingly enough, the Necromancer serves the same role in this game as Death usually does.