TCG Rulings

  • You choose during the End Phase when to stop applying the ATK gain.[1]

OCG Rulings

  • The increased ATK from the effect of "Second Booster" lasts until the End Phase, during which you choose when to have the effect be removed.[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 Konami FAQ: Effect Monster > Second Booster

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