Dark Seraph

From Hellgatewiki.com

Dark Seraph were initially a subtype of the basic winged Succubus monster, but over the course of the game's development they were split off to become their own flaming, fiery demon.

Name: Dark Seraph
Caste: Primus
Rank: Lesser Demon
Subtypes: Unknown
Special: Teleport. Appears in a flaming pillar.

• See all the Dark Seraph shots in our image gallery.

Dark Seraph are tricky and visually impressive. They appear from nowhere in a towering pillar of fire, and attack without delay.

Dark Seraphs that spawn right next to you in an explosive column of fire.
--Erich Schaefer, July 2006, RPG Vault interview.

Dark Seraph have the ability to teleport around, and when they do that or when they first appear, it's often in a rather impressive pillar of flame.

The most memorable monsters were the ones I faced at the end, the Dark Seraphs. These monsters didn't fly around in the sky, instead they seemed to be invisible (or maybe I just didn't look up far enough), until a great pillar of fire came down from the sky with a Dark Seraph at the bottom. The seemed to be melee monsters, and would often appear right next to you when you least expected it. If you ran away too far, or did too much damage, the Seraph would retreat back into the nether the same way it arrived, and next time it came back it would have full shields. This meant that in order to kill them, you had to do it quickly.
--Lanthanide, September 2006, Game Report