Pirate Swiftclaw

Whenever this creature attacks exile target card from your opponents hand face down. Choose a number. At the beginning of the next upkeep if that cards converted mana cost is equal to the choosen number you gain 3 life and draw a card. If not your opponent can play the card without paying any costs.
"Fastest claw in the seven seas, can steal anything right from your enemies hands no one said he was always right."