My moon warriros are two former warriors who died in battle and were given a place in the stars for their valor. Now they spend time finding other warriors sent to the stars and send them back to earth- they aren't quite (human? dragon?) anymore, and are kind of werewolf-like, gaining and losing power depending on the phases of the moon. They all can be either wolfish/creaturish or more human depending on the moon phase (this can be full, half, new, any phase in particular, or perhaps dependant on other celestial bodies or the visibility of constellations, depending on where they were located in the sky), and the opal wounds are the wounds that they had when they died! :D