The Gemstone of Illusions

When The Gemstone of Illusions enters, create five nonlegendary copies of it. Then turn it and all the copies face down. It and the copies still function as they would face up, and you may look at them face
up anytime and do not need to announce which of
the face down cards you are using.

{2}, {t}: Target nonland permanent phases out until
your next turn. You can't activate this ability if this artifact is a copy.