Dorumon - P-070 (Championship 2023 Gold Card Set) (P-070) - Digimon Promotion Cards Foil

[Security] At the end of the battle, reveal the top card of your deck. If it's a black Digimon card with a play cost of 4 or less, you may play it without paying the cost. Add the remaining cards to your hand. Then, add this card to its owner's hand.