Darkdramon (BT16-065) - Beginning Observer Foil

When this card would be played, if there is a Digimon with the [Boss] trait, reduce the play cost by 6. By returning 6 cards with the [D-Brigade] trait from your trash to the top of the deck, reduce the play cost by 6.
[On Play] [When Digivolving] Reveal the top 3 cards of your deck. Delete 1 of your opponent's Digimon with as high or lower a play cost as 1 Digimon card among them. Trash the revealed cards.
[End of Your Turn] 2 of your Digimon may DNA digivolve into [Chaosmon] in the hand.