Dolahan

A Dolahan(sometimes spelled Dollahan) is a blackened suit of armor possessed and controlled by a demon. They can be killed by ordinary means, but are extremely strong, magically powerful, and never require rest.

Dolahans are mentioned in The Inclination to Destiny(Story) and The Reunion of the Eigth Power, as well as The Path to Ascension(Story). They are also a unit in [{mage Wars RPG]] and a card in the Mage Wars Card Game.