This card cannot be Special Summoned. This card returns to the owner's hand during the End Phase of the turn that this card is Normal Summoned or flipped face-up. If this card is Normal Summoned or flipped face-up, look at 1 card on the top of your Deck during your next Draw Phase (before you draw), and return the card to the top or the bottom of your Deck.
You can screen your next draw. If the next card isn't the one you want, you can place it at the bottom of the deck and draw the following card instead. Which can be helpful for some combo deck. Also the card can be used with Mystic Box. Can be helpful to some niche decks.