The Soul of the Frozen Death is a powerful weapon, once named Dargonax (aka Devourer in draconic language). It should have been at the starting used to teach the young drakes to manipulate the magic and, if needed, to copy part of a Dragon's power inside the Gem. Dargonax was able to copy the magic of a spellcaster inside itself. It had the appareance of an azure little crystal. His initial purpose was forgotten when the Nexus War ended. Oscurit, a blue dragonsworn, grabbed the unused artifact for his own researches.