OCG Rulings

  • Detaching 1 Xyz Material from this card is a cost to activate the effect that reduces the ATK and DEF of a monster by 1000.[1]
  • The ATK and DEF of a monster remain reduced as long as it remains face-up on the field.[1]


  1. 1.0 1.1 1.2 Konami OCG Card Database: Number C65: King Overfiend

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