battle spirits godzilla booster box Card Game: Monsters Raid Again (BP02) — Each Booster Pack contains 9 cards Bandai Battle Spirits Card Game

If its [Security] effect results in the attacking Digimon having no digivolution cards, does the attack end immediately

It's pendulum effect allows you to special summon a D/D monster from your GY when you special summon another D/D monster

So even if the opponent wipes his board later with Divine Arsenal AA-ZEUS Sky Thunder , he would still be able to use the effect from the graveyard to negate Divine Arsenal AA-ZEUS Sky Thunder on his turn

You can return 1 Firewall and 1 Decode Link-3 or higher Monster to the Extra Deck (1 from your field and 1 from your field or GY): Special Summon this card (from your Extra Deck), and if you do, you can negate the effects of up to to 4 cards on the field, and if you do that, this card gains 500 ATK for each card negated