The Witcher Bestiary - Armored Hound
Armored Hound Occurrence: The beasts are trained and deployed in combat by hound masters; the hounds are armored and exceedingly fierce.

Immunity: Immune to fear and resistant to stun attempts.

Susceptibility: Sensitive to steel.

Tactics: Armored Hounds are led by mutated beast masters; they act as reinforcements for other units.

Alchemy: Mutagen, beast liver, and beast fangs.

During the first stage of research, we performed experiments on animals only. Having bred a mutated hound, we are certain that the potion formulae are suitable and if we administer them to human subjects, we will achieve exactly what we seek.