Holy Flame

Q:What happens when a Digimon has a security check number of 0 because of this card's effect and it attacks a player?

A:That Digimon can't perform security checks, so the battle ends. Even if your opponent has no cards in their security stack, you would not win the game by attacking with that Digimon.

Q:This card's effect causes a Digimon to gain , giving them a security check number of 0. How many security cards could that Digimon check if it gained ?

A:It would still check 0 cards. In order to check 1 or more security cards, that Digimon would need to gain or higher.