Rathalos-Sin

Rathalos-Sin is a Demonic looking Unknown species of Rathalos. It resembles Unknown Rathalos, but with a color scheme resembling unknown Rathian. It first appears in MH Prime 1: Crisis.

Unlike Rathalos, it uses the Dragon element instead of Fire. Perhaps this is why it can survive in numerous enviroments.

Title: Sky Demon

In Game info
''A Rathalos species that is rarely sighted and very rarely survived. With claws of poison, and the Breath of dragon element, it is a force to be rekoned with. The Guild calls it Rathalos-Sin, although many say it could be the God of Death and Calamity''

Trivia

 * It's name is a spin-off of Bahumat Sin from Final fantasy VII: Advent Children