OCG Rulings

  • It targets 1 monster on your opponent controls. Also, a monster that has been determined to be destroyed by battle cannot be targeted by this effect.[1]
  • The effect to decrease a monster's ATK/DEF by 500 applies as long as the target remains face-up on the field.[1]
  • When battle damage is inflicted, the effect of each "Roaring Earth" that is face-up on the field will be activated.[2]
  • Even if a face-up "Roaring Earth" is no longer on the field, the ATK/DEF decrease is still applied.[3]


  1. 1.0 1.1 1.2 1.3 Konami OCG Card Database: Roaring Earth
  2. Konami OCG Card Database: If 2 or more "Roaring Earth" are active, will each of their effects activate each time battle damage is inflicted?
  3. Konami OCG Card Database: If "Roaring Earth" leaves the field, does the lowered ATK/DEF of monsters revert?

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