Sunlit Marsh

The cleaner cousin of the pain lands, priced in tempo instead of life. Where a shock land or a pain land buys its untapped entry with damage, this cycle pays a fixed tax on arrival: one turn tapped, always, no exceptions and no upside. That flat cost is the whole trade. It makes the land trivially safe to run in any deck that can absorb the tempo hit, which in practice means the slower and more controlling the shell, the closer to free the drawback runs. Being both a Plains and a Swamp is where a land with no other text earns its keep: it registers for anything that fetches or cares about basic land types, so a search effect that wants a Plains or a Swamp will find it. This is fixing designed to be invisible, which is exactly its virtue. A tapped dual demands nothing beyond sequencing it early: no life math, no condition to satisfy, no window where it punishes a misplay. The lineage runs from the original tapped duals forward through every reprint of the "enters tapped, produces two colors" template, a category Wizards returns to whenever a format needs honest fixing without the untapped duals' power creep. It is the least glamorous kind of land in the game and one of the safest, and those two facts are the same fact.