Spire is one of the seven hunters in Metroid Prime Hunters, which also include the bounty hunter and main character of the game Samus Aran. Spire is the last of his species, the Diamont. His body is composed of organic rock, and his back has three rock spires on them. He is in search of the Alimbics to see if they hold the information he needs on how his species became extinct, which would also answer questions about himself. His morph ability is the dialanche, a small sphere that can climb up walls.
"Another hunter seeking the ultimate power, and the last of the silicon-based Diamont race. By finding the secrets of the Alimbics, he hopes to uncover the secret of why his race went extinct. Spire uses the Magmaul, a weapon passed down through Diamont generations, to launch burning magma at opponents."