Dungeon walker

A lizard-like monster that lives in dungeons, they can grow up to 20 meters, they younglings can be up to 10 centimeters small.

They have night vision and are also superior mages.

Dungeon Walkers can move to the dungeon intruder by either crawling on the floor or the ceiling and are called by the adventurers as dungeon’s god of death, they are refered as earth dragons in some regions.

Trivia

 * Even though they are called earth dragons they aren't related to dragons.