Your search for "Mobilized District 218" revealed the following:
Mobilized District (DMC) from Dominaria United Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jedd Chevrier Card Text:T: Add C.4: Mobilized District becomes a 3/3 Citizen creature with vigilance until end of turn. It's still a land....
Mobilized District (WAR) from War of the Spark, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jedd Chevrier Card Text:T: Add C.4: Mobilized District becomes a 3/3 Citizen creature with vigilance until end of turn. It's still a...