Card Rulings:D2 Shield

TCG Rulings

 * You can activate this card during the Damage Step as long as you do it before damage calculation.


 * Activating more than 1 of this card targeting the same monster has no extra effect. Its DEF will still just be double its original DEF.


 * The monster’s DEF remains at double its original value as long as the monster remains face-up on the field.

OCG Rulings

 * You can activate this card during the Damage Step, as long as you do it before damage calculation.


 * If you activate multiple copies of this card on the same monster, then the monster's DEF will just be double its Original DEF.