Omnimon (X Antibody) - Xros Encounter (BT10)

[Digivolve: 3 from [Omnimon]]
When a Digimon with [X Antibody] in its digivolution cards would digivolve into this card, reduce the digivolution cost by 2.
[When Digivolving] Return all of your opponent's Digimon with the highest level to the bottom of their owners' decks in any order.
[When Digivolving] [When Attacking] [Once Per Turn] By placing 1 [X Antibody] or level 6 card from this Digimon's digivolution cards at the bottom of its owner's deck, reveal all of your opponent's security cards, and trash 1 of them. Place the rest in your opponent's security stack face down. Then, your opponent shuffles their security stack.