Slime (Final Fantasy XI) Type Species Charmable Crystal Notes Composed of a gelatinous substance with an indeterminate viscosity, slimes frequent moist or dark areas of Vana'diel. They are damaging enemies, as they are able to use their jelly-like bodies in an almost whip-like motion to inflict significant damage. Even more, they can spew a water-based liquid at their enemies, which causes damage and can, at times, render an adversary partially or totally immobile.