Doc Xu and Bushi

When Doc Xu and Bushi enter the battlefield each player draws 3 cards, then discards 3 cards.
{3}: Draw a card, then discard a card.
{3}: Create a 0/1 mutant fish creature with infect.
{t}: untap target land
When Doc Xu and Bushi dies each player shuffles his or her graveyard into his or her library.