Gigent

Gigents are from space. A race with advanced technology. They hunt dragons, and followed The dragon king to the planet. After their planet was ravaged by dragons thousands of years ago the Gigent became a space fairing race few in numbers, who follow the dragons to hunt and kill them. The Gigent don't get along well with other races and are zenophobic. Gigent don't like to take orders and operate mostly solo. They do have a mothership that they report too. They always take a trophy from their kills.
Gigents have advanced weaponry. Even the Gigents who are not that smart have cybernetic implants that make them formidable opponents.