The Witcher Bestiary - Mutant Assassin
Mutant Assassin Occurrence: Mutants created through experiments with witchers' potions and formulae; they serve the Order of the Flaming Rose unquestionably by supporting its assault divisions.

Immunity: They feel neither fear nor pain; they are resistant to hex attempts, including the Axii Sign; they cannot be disarmed; they are immune to precise hits as well as knockdown and stun attempts.

Susceptibility: Can be injured with steel weapons.

Tactics: Quick and mobile, their combat skills match those of assault divisions, though their armor is inferior; they deliver precise blows that cause pain.

Alchemy: Mutagen and pituitary glands.

Unflappable confidence, strength and courage these are the Mutant Assassins' mottos. These virtues are indispensable for victory, but not sufficient on their own - basic rules of war must not be ignored. While forming new units of knights we need to remember about auxiliary divisions, which will provide the army with more flexibility on the battlefields around the world.