Ethercat

Description
The Ethercat appears as a regular cat lounging around the office. However, this is merely an illusory projection; the real cat is nearby, invisible, and the size of a car. The illusory cat will tend to mimic the real cat's movements, with an apparently dainty swipe in someone's direction accompanied by a very real wallop that can send them flying backward. Unlike most office Life, this creature has flesh and blood.

Abilities
The Ethercat is car-sized and correspondingly strong, and has sharp claws. Its most dangerous attribute, however, is its invisibility, which fades only when it dies.

Behaviour
Ethercats are predators and have been invariably hostile. Even after a captive was removed from the office for a prolonged period, it was still highly aggressive toward the Order.

Trivia

 * "Ethercat" is not yet an official name, merely one of the suggestions that has been used. They are not uncommonly just called "cats".