Can I choose fewer cards than possible, even if the play costs of the chosen cards add up to less than 15?
Yes. As long as the total play costs of the chosen cards is less than 15, you can choose as many or as few cards as you like.
Mar. 28, 2024
This card's effect reads, "Digimon with a memory cost of 6 or less," but which cost is this referring to?
The Digimon's play cost.
Mar. 28, 2024