Rocks D. Xebec

+1: Look at the top card of your library you may reveal that card and put it into your hand. If you do you lose life equal to its mana value.
-2: Return a pirate creature card from your graveyard to the battlefield you lose 1 life.
-7: Reveal the top 5 cards of your library and put them in your hand. Each opponent loses life equal to the total mana costs of cards revealed.