Hydrogon

Hydrogon is a dual-type Water/Dragon Pokémon.

It evolves from Finndra starting at level 51. It is the final form of Finflix.

Trivia

 * Prior to 1.0.1, Hydrogon used Dragonite's cry.
 * According to the Popularity Poll, Hydrogon is the most used non-Starter Pokémon.
 * It was at one point an Ice/Water Type.
 * It and its evolution line was planned to be Starters.

Origin
Hydrogon is based on a Sea Monster and possibly The Loch Ness Monster due to being classed as "The Hidden Pokemon" and Loch Ness Monsters stated in the folklores try and stay hidden from humans. It might also have some inspiration with the Plesiosaurus, an extinct Marine Reptile in the latest Triassic Period about 203 million years ago.

Name origin
Hydrogon's name comes from Hydro, Hydra, or Hydrate, and Dragon.