An Underground Cavern Wyrm. It's body gives off a soft glow in dark conditions.
It spends a lot of time digging around for crystals. Has 2 drill-like appendages that can shatter even the hardest of rocks. These can fuse into one big drill, increasing it's digging speed.
Vents on the side of the body push out dirt and debris from the drill part, dirt suctioned through it's mouth.
It's blind, requiring large ears to listen closely to it's surroundings.
Despite it's ability to crumble almost any rock, it's almost perfectly silent.