The Great City of Qarth

{t}, Lose 1 life: Create a colorless Treasure artifact
token with "Sacrifice this artifact: Add one mana
of any color to your mana pool."
{2}{t} : Draw a card.
"We call Qarth "the Greatest City that Ever Was or
Will Be". An easy claim to make if one knows only the docks and custom houses of other cities. An easy lie to swallow if a people only see the gold and jewels of their rulers."
—Xaro Xhoan Daxos