TCG Rulings

  • The effect of Chaos King Archfiend changes the current ATK and DEF of the monster, not the original ATK and DEF.[1]

OCG Rulings

  • When applying the monster effect of "Chaos King Archfiend", you can swap the ATK and DEF of all face-up monsters in your opponent's Monster Zones until the end of the Battle Phase.[2]
  • The ATK and DEF replaced by the monster effect of "Chaos King Archfiend" are not treated as the original ATK and DEF.[2]


  1. 1.0 1.1 Konami Gameplay FAQ: The Shining Darkness Sneak Peek -- Card Rulings (Version 1.0)
  2. 2.0 2.1 2.2 2.3 Konami OCG Card Database: Chaos King Archfiend
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