Mox Opal [Kaladesh Inventions] Magic Player Rewards 2009 Set: Portal Three Kingdoms Type:

Set: Portal Three Kingdoms Type: Sorcery Rarity: Common Cost: {1}{G} Search your library for a Forest card

target instant or sorcery card in your graveyard gains flashback until end of turn

" —Multani

Set: Commander 2011 Type: Instant Rarity: Rare Cost: {U} Counter target instant or sorcery spell unless its controller pays {1}

It has "This creature's power and toughness are each equal to the number of experience counters you have

Mox Opal [Kaladesh Inventions] Magic Player Rewards 2009 Set: Portal Three Kingdoms Type:Set: 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.