Watery Grave

({T}: Add {U} or {B}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

"Log 2.9.089: Lammuat, the cemetery moon of salvage and secrets. Could be profitable for those brave enough to plumb its recesses."
—*Maisie's Edge Chronicles*

Edge of Eternities

Ravnica: Clue Edition

As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Ravnica Remastered

If an effect puts this land onto the battlefield tapped, you may pay 2 life, but it still enters tapped.

Unlike most dual lands, this land has two basic land types. It's not basic, so cards such as District Guide can't find it, but it does have the appropriate land types for effects such as that of Drowned Catacomb (from the Ixalan set).