In ancient caverns and forgotten tunneled halls lurk the creatures made of living crystal. Their dark days are spent patiently looking for victims to propagate their species. Upon slaying a creature, a crystite will deposit an crystaline egg in a bodily orifice. This egg slowly crystallizes the dead body until a new crystite is formed resembling the original host. Crystites therefore have been known to resemble humans, dwarfs, orcs, kobolds, ogres, or even dogs.
Crystites are of low intelligence and speak no known language. They are not social but gregarious around others of their own kind. They cannot heal injuries, and can be demoralized and forced to flee if faced with superior opposition.
Crystites have as many hit dice as the creature they copy. Their stony nature gives them +1 armor per level versus bladed weapons. Being made of stone, their movement speed is ten feet slower than whatever creature they resemble. When destroyed, Crystites shatter mostly to dust, but will leave 1d6 x 10 / level worth of salvageable gemstones.
NAME ATTACKS LEVEL MOVE SIDE NUMBER TREASURE
Crystite 1 * *(-10′) N 1-6 II (gems)
It was out of sheer luck and desperation that a dwarfish chemist discovered a particular weakness of Crystites: A special acid that breaks down their crystal lattice. Fitted with special hollow arrow heads filled with the acid, these arrows deal an additional 1d6 damage to Crystites, and 1d3 damage to other creatures.
Acid arrows are sometimes found in abandoned underground laboratories. An alchemist who knows the formula can create arrow heads at a cost of 5gp per arrow.