Mox Opal {0}

Legendary Artifact

Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts.

Faces, Tokens, & Other Parts
Mox Opal, PRM #82856
Quicksilver Lapidary, YONE #26

Prints	USD	EUR	TIX
Secret Lair Drop	$99.09
Magic Online Promos			6.65
Double Masters #275	$85.55	€62.45	5.82
Double Masters #362	$126.25	€91.32
Judge Gift Cards 2019	✶ $105.86
Kaladesh Inventions	✶ $426.68		6.24
Modern Masters 2015	$77.60	€55.70	5.33
Scars of Mirrodin	$80.27	€55.37	5.64
View all prints →

If you control Mox Opal and one other artifact, then have a second Mox Opal enter the battlefield as your third artifact, you can't activate either one's mana ability before putting one into your graveyard due to the “legend rule.” (2020-08-07)