City of Shadows

City of Shadows is legal in Commander, Legacy, Vintage, and Oathbreaker — formats where powerful lands see real play. In Commander it finds its best home, rewarding sacrifice and blink strategies with mana that can eclipse Sol Ring given enough counters. Legacy and Vintage rarely want it; those formats demand consistent colored mana and fast interaction, and a land that enters tapped and produces zero until you've paid a body cost is too slow and conditional to compete with the format staples. Oathbreaker is the sleeper case — smaller starting life totals and faster games mean the window to capitalize on a large counter stack is narrow, but a tuned sacrifice shell can still make it work.