Omekamon #BT15-060

While this card is revealed from the deck, its name is also treated as [Omnimon].
[Blocker]
[On Play] If it's your turn, 1 of your other Digimon may digivolve into a black Digimon card with [Greymon] or [Garurumon] in its name in your hand with the digivolution cost reduced by 2.
[[DigiXros -1] [Agumon]/[Greymon]x[Gabumon]/[Garurumon]
When you would play this card, you may place specified cards from your hand/battle area under it. Each placed card reduces the play cost.]

[When Attacking] [Once Per Turn] [De-Digivolve 1] 1 of your opponent's Digimon.