Does this card's [My Turn] effect allow this card's [On Deletion] effect to be activated twice when I use one of my Digimon with <Security Attack +1> to check 2 cards in my opponent's security stack?
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Official Ruling
No, it doesn't.This effect is triggered "When a card is removed from your opponent's security stack," so even when you check multiple cards in your opponent's security stack, it is triggered upon the first check, then you choose whether to activate it or not. Also, this is a [Once Per Turn] effect, so if you activate this effect when a card is removed from their security stack upon the first check, you can't activate the effect again upon the next check.