Effect
When you would use this card, if you have a Digimon with [X Antibody] in its digivolution cards in play, reduce the memory cost of this card by 2.
[Main] Choose any number of your opponent’s Digimon and Tamers whose total play cost adds up to the play cost of 1 of your Digimon with [Greymon] in its name in play or less and delete them. Then 1 of your Digimon with [Greymon] in its name may attack your opponent.