Screaming Banshee

Screaming Banshee (スクリーミング・バンシー) is a monster from YGGDRASIL.

Abilities
The Screaming Banshee had the ability to instantly kill anyone who heard it or deal mental damage.

Trivia

 * This monster only appears in the Web Novel.
 * In the Light Novel, Ainz possessed a spell called "Cry of the Banshee" which almost carried exactly the same instant-death effect as the undead monster with a similar ability like it from the Web Novel.