At the beginning of your end step, you may discard a card. If you do, create a Treasure token (A Treasure is an artifact with ", Sacrifice this artifact: Add one mana of any color.") and choose ambitious or expedient. If you chose ambitious, seek (To seek a card, put one at random from your library into your hand.) a card with greater mana value than the discarded card. If you chose expedient, seek (To seek a card, put one at random from your library into your hand.) a card with lesser mana value than the discarded card.