If a target Digimon of this card's [When Digivolving] effect later gains a digivolution card, can it now attack?
No, it can't. After this card's [When Digivolving] effect activates for a Digimon with no digivolution cards, that Digimon can't attack until the effect ends, even if it later gains a digivolution card.
Mar. 28, 2024