Yuji Musya (Event Pack 4)

[Your Turn] When one of your Digimon with [X Antibody] in its traits is moved from your breeding area to your battle area, gain 1 memory and [Draw 1].
[Your Turn] When one of your black Digimon with [X Antibody] in its traits attacks, you may suspend this Tamer to place 1 card with [X Antibody] in its traits from your hand under that Digimon as its bottom digivolution card.
[Security] [Security] Play this card without paying its memory cost.