Jovassa, Prismatic Jeweler

If Jovassa is your commander, choose two colors
before the game begins. Jovassa is the chosen
colors.
At the beginning of your upkecp, you may pay
{1} and sacrifice a nontoken artifact. If you do,
choose a card name from among Mox Pearl,
Mox Sapphire, Mox Jet, Mox Emerald, and Mox
Ruby. Create a copy of the card with the chosen
name. You may cast the copy.