Your search for "plains 867" revealed the following:
Plains - Art Series (Gold-Stamped Signature) (AOTJ) from Outlaws of Thunder Junction Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Salvatorre Zee Yazzie
Plains - Art Series (Gold-Stamped Signature) (ASNC) from New Capenna Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Elektrodeko
Plains (079) - Art Series (Gold-Stamped Signature) (ANEO) from Neon Dynasty Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Amayagido
Plains (008) - Art Series (Gold-Stamped Signature) (AZNR) from Zendikar Rising Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Adam Paquette
Plains (080) - Art Series (Gold-Stamped Signature) (ANEO) from Neon Dynasty Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Tomohito
Plains (Summer) - Art Series (Gold-Stamped Signature) (AHOB) from The Hobbit Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: David Petersen
Plains - Art Series (Gold-Stamped Signature) (ALTR) from Tales of Middle-earth Art Series, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Constantin Marin