Your search for "Radiant Summit 549" revealed the following:
Radiant Summit (TRC) from Star Trek Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Pablo Mendoza Card Text:(T: Add R or W.)This land enters tapped unless you control two or more basic lands.
Radiant Summit (MSC) from Marvel Super Heroes Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Rytis Sabaliauskas Card Text:(T: Add R or W.)This land enters tapped unless you control two or more basic lands.