Sandworm (Final Fantasy XI) Type Species Charmable Crystal Notes For years the sandworm has held a place in Galkan folklore; the enormous worms were said to lurk in the deserts of the underworld, scavenging upon the interred bodies of the dead. Thought for a long time to be nothing more than a fictitious beast, proof of their existence came as a shock during the Great War when they were observed on numerous occasions, burrowing up onto the field of battle to swallow unsuspecting soldiers.