Nazarick Elder Guarder

Nazarick Elder Guarders (ナザリック・エルダーガーダー) are a sub-class of undead related to the Nazarick Old Guarders.

Appearance
Nazarick Elder Guarders resemble helmeted skeletons wearing identical breastplates, draped in tattered red cloaks.

Background
Nazarick Elder Guarders are a special kind of undead that originate from the Great Tomb of Nazarick. They are part of Nazarick's defense system, tasked with defending the dungeon from any invaders.

The Lizard Man Heroes Arc
After Cocytus' failure in annihilating the Lizardmen Alliance of the Great Lake, Ainz decided, through the convincing of Cocytus and Demiurge, to change his plan from destruction to occupation. Thus, he called forth Nazarick Elder Guarders alongside 3000 Nazarick Old Guarders and Nazarick Master Guarders.

Abilities
It is unknown how powerful they are compared with the Old Guarders, but they wield bucklers and bastard swords. One Nazarick Elder Guarder is at least stronger than a mithril-ranked adventurer.

Trivia

 * In the Anime and Manga, they are also depicted wielding shields.