Your search for "Gleaming Barrier 768" revealed the following:
Gleaming Barrier (J22) from Jumpstart 2022, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jason Felix Card Text:DefenderWhen Gleaming Barrier dies, create a Treasure token. (It's an artifact with "T, Sacrifice this artifact: Add one mana of any...
Gleaming Barrier (Foil) (FDN) from Foundations, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jason Felix Card Text:DefenderWhen Gleaming Barrier dies, create a Treasure token. (It's an artifact with "T, Sacrifice this artifact: Add one mana of any...
Gleaming Barrier (Foil) (RIX) from Rivals of Ixalan, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jason Felix Card Text:DefenderWhen Gleaming Barrier dies, create a colorless Treasure artifact token with "T: Sacrifice this artifact: Add one mana of...