Nubbin predator

The natural hunter of nubbins is a visual amalgam similar looking to that of wolf, cat, and bear which has the ability to cloak, as have the nubbins.

It was eaten by the nubbins in the Old City Sanctuary. It became increasingly agitated the more the nubbins reproduced, and while not outright stated, it is implied that it's predatory nature may be a response to the danger of a large nubbin population and their swarm feeding tactics, rather than a need to feed. If this is true, it would actually be a highly defensive prey animal rather than a predator.