Mox Opal [Kaladesh Inventions] Holo Rare and forests

and forests

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Set: Aether Revolt Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

This puzzle will be delightful and enjoyable to construct for those who want to be challenged

Set: Planechase Type: Sorcery Rarity: Uncommon Cost: {2}{U} Search your library for an artifact card

Mox Opal [Kaladesh Inventions] Holo Rare and forestsSet: 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.