Gokuumon (BT12-039) - Across Time

[Digivolve: 3 from Lv.4 w/[Save] in text]
When you would play this card from your hand, if your opponent has a Digimon with [Security Attack] in play, reduce its play cost by 3.

[When Attacking] [Once Per Turn] Until the end of your opponent's turn, 1 of your opponent's Digimon gains [Security Attack -1]. (This Digimon checks 1 fewer security cards.)