Final Countdown

Shuffle your library, then exile the top card
of your library. Until end of turn, you may
play that card without paying its mana cost.
If it is a land or a card with 3 or less mana
play the next card on top for half the price.
"This fight was over before it had even began. I
hope you will learn your lesson when I send
you to the Shadow Realm!" ~Zelda