Nidhoggmon

Nidhoggmon is a Demon Dragon Digimon. It is a colossal Digimon that takes vast amounts of energy into its body, and is constantly overheating. The color emitted by its wings represents the extent of its overheating; the more it approaches the danger level, the redder it becomes. It repeatedly destroys and absorbs things, leaving nothing behind in its wake.

 Attacks: 
 * Annihilention: Red-hot beams fired from its eyes.
 * Rudiment: Condenses the energy within its body, and breathes it out of its mouth as a wave.

Design
According to Kenji Watanabe, Nidhoggmon is so big, its tail would extend from to.

Etymologies
Official romanization given by the Digimon Reference Book and used in the franchise.
 * Nidhoggmon (ニーズヘッグモン)
 * . A mythological dragon/serpent from.