Omnimon Alter-B (EX4-073) - Alternative Being Booster Foil

[Digivolve: 2 from Lv.7 w/[Omnimon] in name]
[When Digivolving] [De-Digivolve 3] 1 of your opponent's Digimon. Then, choose any number of your opponent's Digimon so that their play cost total is up to 6 and delete them.
[When Attacking] By trashing up to 3 level 6 or higher cards in this Digimon's digivolution cards, among your opponent's Digimon and Tamers, delete 1 with the lowest play cost for each card trashed. If you trashed 3 cards, trash the top 2 cards of your opponent's security stack.