Nobleman of Crossout (Purple) (DL14-EN015) - Duelist League Promo Unlimited

Target 1 face-down monster on the field; destroy that target, and if you do, banish it instead of sending it to the Graveyard, then, if it was a Flip Effect Monster, both players reveal their Main Decks, and banish all cards with that monster's name from both Decks.