Gankoomon (X Antibody) - Xros Encounter (BT10)

[Digivolve: 1 from [Gankoomon]]
[Blocker]
[When Digivolving] You may play 1 Digimon card with [Sistermon] in its name from your hand or trash without paying its memory cost. Then, if [Gankoomon] is in this Digimon's digivolution cards or you have a Digimon with [Sistermon] in its name in play, until the end of your opponent's turn, all of your Digimon get +2000 DP and your opponent's effects can't return them to hands or decks or reduce their DP.