Mechataur

Mechataur, a character in "The Crown & The Flame" series, is the mechanical guardian of the Technocrat's labyrinth. It is first seen in Book 1, Chapter 12.

Appearance
The Mechataur's body is made entirely of metal. It has glowing eyes ranging from green to yellow to red; as it is designed to look like a humanoid bull, it has a bull's head and horns. Inside its chest is a compartment for what seems like its core that turns off and on depending on the Mechataur's power setting, sealed with a grilled cover; should the core turn off, so will its eyes. Its arms are partially armored, exposing some wires and gears inside.

Functions
The Mechataur is designed as the protector of the Foundry's labyrinth, and as such is designed for combat. It can overwhelm multiple opponents, even those with a weapon, using its sheer bulldozing force. Only those who can figure out its intentionally-programmed weakness can defeat it.

The Mechataur seems to be an imperfect creation while inside the labyrinth, as Whitlock had difficulty perfectly recalibrating it to distinguish friend from foe after Kenna recruiter it, seen when it almost punched her during her seige of Stormholt.

Whitlock
Whitlock created the Mechataur specifically as a guardian in the Foundry's labyrinth. He later reprogrammed him for use in more conventional battles. Since the Mechataur used conventional means of fighting, Whitlock didn't see a problem with the construct being used as a weapon, since it was essentially a repairable soldier.