Bog Wreckage

A black source that comes in tapped, with a second mode that overwrites the first: tap and sacrifice it to add a single mana of any color, spending the permanent itself to fix a stubborn splash. The two abilities never cooperate. You either lean on it as a slow black source for the long game, or you cash it in once for perfect fixing and accept a permanent dip in land count. That sacrifice clause is the whole transaction. One of five sibling lands from the same block, each in its own color, each entering tapped and convertible into any color at the price of its own destruction: tempo surrendered now against one moment of flexibility banked for later, the same trade in every color. The cost structure does real work. A land that produced any color with no strings attached would be a staple; gating the fixing behind the loss of the source keeps this a corner-case answer rather than a default include. It reads as an artifact of an era when smoothing a splash was expected to charge real resources, often the land itself rather than mere tempo, before fetch-and-dual manabases made off-color fixing nearly free.