Merchants' Hamlet

{2}, {t}, discard a card: Gain 7 life.
{2}, {t}, pay 4 life: Create a 2/4 white Ox
creature token.
{2}, {t}, sacrifice a creature with
toughness 3 or greater: Create two Treasure tokens.
{2}, {t}, sacrifice an artifact: Draw two cards,
then discard a card.