Law and Chaos are the dominant metaphysical forces in the fantasy stories of Michael Moorcock. Law and Chaos are in constant struggle, but they are kept in check by the Cosmic Balance, an even more powerful force for neutrality. The Eternal Champion acts to balance the advances of Law and Chaos as a servant of the Cosmic Balance, reincarnated or summoned to the worlds of the Multiverse where Chaos or Law is becoming dominant. There are many planes of existence. In some the Lords of Chaos are strong. In some they are weak. In some, I have heard, they do not exist at all.