The Witchblade is a conscious, intelligent, and ancient weapon with supernatural origins. It is one of 13 mystical artifacts, of which several have been revealed: the Witchblade, the Angelus, the Darkness, the Ember Stone, the Glacier Stone, the Rapture, the Blood Sword, the Spear of Destiny, and the Wheel of Shadows.
Also known as Mister Bubbles, Big Daddy is one of the many creatures that can be found in Bioshock. There are genetically enhanced humans that look like giant divers. Their main purpose is to protect Little Sister in the underwater city of Rapture.