Spire is a tall, well-built Greyhound who is the Bounty Hunter for the Diamond Dogs. Spire is a Mute, meaning he cannot talk or produce any sounds via his Vocal Cords. Unlike the traditional Diamond Dog who rushes in with spears and clubs to overpower a foe, Spire counts on strategy and stealth. He is like a ghost in combat, able to take down a squad one by one before one can even notice. But like all Diamond Dogs, he has a love for Gems. He claws his way through dirt and can find the most rarest of Gems with his heightened sense of smell. He has a crush on a fellow Diamond Dog named Ruby.