Balikna

This large, lizardlike creature has tall back spikes, a spiked tail, and legs that end in fierce pincers. It has bad eyesight and hunts via sound thanks to a series of funneled ears on top of its large jaw.

A balikna is the king of camouflage, with the passive ability to change its pigment to identically match whatever object it rests upon, becoming essentially invisible. During the daylight hours, the balikna stays motionless and invisible. It hunts only at night, under the cover of darkness. Although its movements are mostly silent, those with good hearing, good night vision, or the proper numenera devices can track this creature in the dark more easily than during the day.