Destiny Hero - Diamond Dude (UTR) (EOJ-EN003) - Enemy of Justice Unlimited

When this card is on the field faced-up, you can view the top card on your deck. If the card is a normal magic card, send it to the graveyard, on your next main phase you can activate the effect of that normal magic card. If the card is not a normal magic card, send that card to the bottom of the deck. You can only use this effect once each turn.