Beast of Gondolin

The Beast of Gondolin was a powerful dragon that could hold many Balrogs upon its back. It was even bigger than Glaurung and almost killed Tuor and Ecthelion with its massive feet. Luckily the two warriors managed to wound the creature, and caused it to go into a berserk. It is unknown what exactly happened to the Beast of Gondolin, but many have hypothesized that it was killed in the siege. The Beast of Gondolin is often associated with the name Balcheneb.