Golden City

Golden City enters the battlefield tapped.
{t}: Add {w/b}{w/b} to your mana pool or {1} mana of
any color.
{3}{w}{b},{t}: This ability costs {2} less if opponent
has no cards in their hand. Target opponent
discards 2 cards and loses 2 life and you draw 2
cards and gain 2 life. If they can't discard a card,
create a treasure token for each card they should
have discarded.