Changes

At least three Lord Cyphers have appeared in canon material:

*'''A young Lord Cypher''', who was one of Luther's advisors during the first stages of his rebellion.{{Fn|1}} He came to his position as a mortal human, but became a [[Dark Angels]] [[Space Marine]] during the recruitment period that followed the Imperium's discovery of Caliban.{{Fn|8}} This Lord Cypher was rumoured to be the last surviving Knight of Lupus, who escaped his order's destruction and somehow made his way into the ranks of the Order.{{Fn|1}} However, the novel [[Angels of Caliban (Novel)|Angels of Caliban]] makes this unlikely, as it portrays this Lord Cypher as an ally of the [[Watchers in the Dark]] and an enemy of [[Chaos]], whereas the Knights of Lupus sought to preserve the Chaos-tainted Great Beasts of Caliban and books from their library contributed to Luther's fall to Chaos. Furthermore, [[Zahariel]] recognized this Lord Cypher after removing his helm, which would be improbable if he was a former Knight of Lupus.{{Fn|7}}

*[[Zahariel El'Zurias]], who ordered the former Lord Cypher's death after he attempted to kill him during a coup and was promoted to his place by Luther.{{Fn|7}} It is not known if Zahariel is the Lord Cypher that is active in the fortieth millennium, but this would go some way towards explaining his enigmatic behavior and allegiances, as Zahariel was a powerful Chaos sorcerer who joined a rebellion against the Imperium but was not aligned with [[Horus]] or the other traitor legions. Furthermore, the current Lord Cypher is said to be one of the Fallen, which Zahariel was. During his most recent capture by the Dark Angels, Cypher spoke a codeword "Starfire", the codeword which had been used to activate the orbital defense weapons against Lion El'Jonson's fleet, which was originally known by only four people: [[Luther]], [[Astelan]], [[Griffayn]], & Zahariel.{{Fn|6a}}{{Fn|12}}