Your search for "Smoldering Marsh 820" revealed the following:
Smoldering Marsh (TRC) from Star Trek Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Enora Mercier Card Text:(T: Add B or R.)This land enters tapped unless you control two or more basic lands.
Smoldering Marsh (C20) from Commander 2020, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Adam Paquette Card Text:(T: Add B or R.)Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.