The Great Hunger also called Mob c was a possible answer in the 2017 Mob Vote along with the Monster of the ocean depths, the Hovering Inferno/Wildfire, and the winning Phantom.

It is described as a lizard-like creature that sinks into the ground, camouflages itself and consumes mobs and items with its huge mouth. It has a "great appetite for enchanting powers" and Jeb says that viewers should vote for Mob C because players may be able to use the mob's abilities to add or remove enchantments for players' own items. Mob C was eliminated after the third poll.

More facts here: https://mcmobs.fandom.com/wiki/The_Great_Hunger