Seachrome Coast
Land
This land enters tapped unless you control two or fewer other lands.
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or 
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Where indoctrination meets inquiry, currents roil restlessly beneath the surface.
Mauricio Calle
Rulings
If one of these lands enters the battlefield under your control and you control zero, one, or two other lands, it enters the battlefield untapped. If you control three or more other lands, however, it enters the battlefield tapped.
(wotc • 2023-02-04)
If one of these lands enters the battlefield at the same time as one or more other lands (due to Oblivion Sower or Warp World, perhaps), it doesn't take those lands into consideration when determining how many other lands you control.
(wotc • 2023-02-04)
Printings
Price History (USD)
Rulings
If one of these lands enters the battlefield under your control and you control zero, one, or two other lands, it enters the battlefield untapped. If you control three or more other lands, however, it enters the battlefield tapped.
(wotc • 2023-02-04)
If one of these lands enters the battlefield at the same time as one or more other lands (due to Oblivion Sower or Warp World, perhaps), it doesn't take those lands into consideration when determining how many other lands you control.
(wotc • 2023-02-04)