Lernaean hydra

Lernaean hydras were a rare variety of hydra.

Description
These creatures resembled the standard hydra.

Abilities
These creatures were unique to other types of hydra in that whenever one of their heads were removed, it would quickly regenerate along with another head unless fire was applied to its injured neck stump. Until all heads were removed from their body, a lernean hydra could not die.

History
A fifty-headed lernaean hydra was said to have been slain by the giant goddess Hiatea in order to prove herself to her father, Annam All-Father. She was said to have used her enchanted spear to slay it, preventing the regeneration of its heads by cauterizing them with fire.

In the mid-14 century DR, a lernaean hydra was known to lair within a hidden room of Undermountain's third floor.

Habitats
Like the standard hydra these creatures were typically found in marshes, swamps, and underground lairs. In particular, they were known to inhabit the Umber Marshes in the Unapproachable East. They were also known to be found in the marshes of Cormyr, including the Farsea Marshes and the Tun Marshes.

Appearances

 * Adventures
 * The Ruins of Undermountain