Can I use this card's [All Turns] effect to give 1 of my opponent's Digimon <Security A. -1> when this card is played by [BT13-012 GeoGreymon]'s [When Digivolving] effect?
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Official Ruling
Yes, you can. The timing when this card is played into the battle area and the timing when a card is removed from your security stack are the same, so the [All Turns] effect can trigger and activate.
