At the beginning of your end step, Crystal Golem phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)
"Once, a wealthy king commissioned an artificial creature to be crafted from the royal treasury, thinking it a clever ploy to have the jewels guard themselves."
—Azeworai, "The Golem's Wish"
Near Mint - $400
Lightly Played - $300
Moderately Played - $300
Heavily Played - $200
Damaged - $200
Near Mint Spanish - $400
Lightly Played Spanish - $300
Moderately Played Spanish - $300
Heavily Played Spanish - $200
Damaged Spanish - $200