Mountain beast

Mountain beasts are massive creatures--literally the size of mountains. They function almost as super-organisms, with a number of semi-autonomous creatures/organs inside and on them. The mountain beast and its components are tentacled, many-eyed, and fanged.

Beard made use of a mountain beast in his quest to locate One-Eye, manipulating the beast with a pair of poisons that simultaneously rendered it insanely furious and motionless.