Sigil (2000)

Summary

Humanity''s last hope for survival is a grizzled space-soldier with a second chance at glory! After centuries of interstellar warfare, the humans of the Planetary Union have a new weapon against the man-eating Saurians. He is Samandahl Rey, galactic mercenary, who wields the world-changing power of the glowing Sigil burned into his chest. Could it be that this interspecies death-match is but a prelude for an even more momentous conflict?