Rank 4: Kairos Fateweaver
In rank 4 is our first demon on this list. As such, Kairos exists in all worlds of Warhammer, from Fantasy to Age of Sigmar and even in 40,000. Kairos himself is a lord of change, a very powerful demon of Tzeentch.
Kairos was the leader of the demons of Tzeentch in Total War: Warhammer 3 and is seen in the trailer:
The greatest feature of Kairos is his two heads, one of which sees the past and the other all possible versions of the future. As a result, the demon is blind to the present. Because of this, and due to his master Tzeentch, who is closely entwined with magic, the Fateweaver became an incredibly powerful wizard.
He knows every existing spell, but his nature prevents him from climbing higher on this list. For just like Tzeentch, the Fateweaver is chaotic and unreliable.
During the End Times, he lost his own campaign against the mortal lands to an army of the Chaos god Nurgle, who was not happy about his presence at all. He and his master left the destruction of the world to someone who was the champion of all four Chaos gods.
