Grenbera Tuveg Fighter

Grenbera Tuveg Fighter (ツヴェーク・ファイター・グレンベラ) is a monster that can be found and fought in the Grenbera Swamp of Helheim.

Background
In YGGDRASIL, Grenbera Tuveg Fighters were one of the monsters that spawned around the swamp area where the Great Tomb of Nazarick was located originally. It guards the unconquered Great Tomb of Nazarick from enemy players and NPCs if caught on sight trying to trespass into their territorial ground before reaching the tomb.

Appearance
They look like bipedal frog-monsters.

Abilities
Grenbera Tuveg Fighters are monsters that have adapted to living in a swamp-like environment. In YGGDRASIL, their level can reach as high as level 83. The huge patch of wetlands littered with poisonous marshes, were controlled by the Tuvegs, who are immune to poison. They had the ability to see through enemies using concealment techniques.

Trivia

 * The members of Ainz Ooal Gown avoided confronting this monster as they made their way to Nazarick.