[When Digivolving] For each card with [Mega] in their traits in this Digimon's digivolution cards, delete 1 of your opponent's Digimon. Then, place 10 cards in your opponent's trash at the bottom of their deck in any order. [Start of Your Turn] Trash the top card of this Digimon. If you do, trash the top card of your opponent's security stack.