Greyscale Swindler

At the beginning of your end step, look at the top card of your library. If that card is a rouge card, reveal it and target player discards a card.
{2}{b}{b}, Put the top card of your library into your graveyard: Target player loses life equal to that cards converted mana cost. If that card is a rouge card, that player discards that many cards.
Everything will be found, whether you like it or not.