The chains of Kel’Thuzad are a specially crafted set of seven magical spiked chains, given to him by Ner’zhul. The owner must wrap this artifact around his body to activate it, at which point the chains animate and move lazily to and fro in the air when not being commanded. Each chain has a slightly different power. The chains only function as a set; a chain separated from the set causes all chains to cease functioning until restored. The chains that can attack each act on their own, so all chains can still attack even if Kel'Thuzad is not taking a full attack action. Three of the chains are the equivalent of +5 icy burst spiked chains, but have a 15-foot reach and are animated to attackon their own. Once a chain has been commanded to attack a target, it continues to attack that target whenever possible. If the target is not in reach, then the chain attacks a random creature within reach. Two more chains are animated to grapple foes, but otherwise act as the previous chains. The wearer is most likely unable to move far from the position at which a subject becomes grappled, but the wearer is not considered grappled himself. The chains do all the work.