Mox Opal [Kaladesh Inventions] Innistrad (They can't be blocked except

(They can't be blocked except by artifact creatures and/or black creatures

"Foolish wizard

Set: Alpha Edition Type: Creature — Zombie Rarity: Uncommon Cost: {3}{B} At the beginning of each end step

Set: Zendikar Expeditions Type: Land — Mountain Plains Rarity: Mythic ({T}: Add {R} or {W}

Mox Opal [Kaladesh Inventions] Innistrad (They can't be blocked exceptSet: Kaladesh Inventions Type: Legendary Artifact Rarity: Mythic Cost: {0} Metalcraft {T}: Add one mana of any color. Activate only if you control three or more artifacts. On loan from a private collection, this unique mechanism extracts power from a carefully prepared gemstone.