Hiquav, Lord of the Slaves

At the end of your end step, discard a card. If you have no cards in hand, you lose 3 life.
When Hiquav, Lord of the Slaves enters the battlefield put 5 1/2 slave creature tokens onto the battlefield.
{p/b}, sacrifice a slave token: reveal the top cards of your library until you find a creature spell. Then put that card in your hand and the rest of the cards into your graveyard. Then put slave creature tokens equal to the mana cost of the card. ( X and Y values count as a 0.)