"Having spurned the righteous callings of decency and chivalry, Black Knights are now solely dedicated to the cause of pure evil, making them sworn enemies of Knights and Kings alike. Warriors through and through, Black Knights detest any form of work that doesn't involve the repeated and bloody use of their trusty sword. Their sturdy plate armour allows them to survive prolonged and sustained punishment in combat and their great strength and bravery means they gleefully join the front ranks in any potential bloodbath."
—Dungeon Keeper 2 Instruction Manual
"Battle doesn't need a purpose; the battle is its own purpose. You don't ask why a plague spreads or a field burns. Don't ask why I fight."
The knights take on the duties of shadows with pride.
—Nullity Revenger, Masquerade, Cardfight!! Vanguard