TCG Rulings

  • The effect to change the attack target does not target.[1]
  • If you have multiple copies of "Card Blocker" on the field, you can only activate 1 of their effects to change the attack target when your opponent's monster attacks.[1]

OCG Rulings

  • Sending up to three cards from your Deck to the Graveyard is a cost to activate the effect of "Card Blocker" which increases its DEF.[2]


  1. 1.0 1.1 1.2 1.3 Konami Gameplay FAQ: Ancient Prophecy – Card Rulings (version 1.0)
  2. 2.0 2.1 2.2 Konami FAQ: Effect Monster > Card Blocker
  3. Konami FAQ: When changing the attack target with "Card Blocker", can you change the attack target again with another "Card Blocker"?

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