Arcana of the Ancients- Beasts of Flesh and Steel: - Rules of Play says:
The lacaric courier singlemindedly delivers strange devices to ancient ruins, sometimes travelling great distances and facing incredible hardships to do so. Why? What’s the significance of the cargo or destination? Nobody knows—but don’t get in its way! Like a hermit crab seeking out empty shells, the kalyptein crab lives in ancient devices. It often gains unexpected and powerful abilities from its home, making it an unpredictable foe. The silvery liquid namnesis communicates by swapping memories—literally stealing those of its target while implanting its own startling thoughts. It changes form rapidly, even splitting into multiple attackers, and can sometimes steal a character’s abilities to use against them...Add an element of the truly unexpected to your Fifth Edition game with this fantastic assortment of science-fantasy creatures born in the Ninth World—the award-winning, a critically acclaimed setting created by legendary game designer Monte Cook.