Haunted Fengraf

The randomness is the whole tax here. Plenty of lands have offered creature recursion as a late-game mana sink, but most let you pick the body you want back; this one charges you the same three-and-a-sacrifice and then hands you whichever creature card the graveyard coughs up. That single word, "random," is the design lever that lets a colorless land do something colored decks pay real cards for: in a graveyard with one creature it is a clean tutor, and the more bodies that pile up, the less reliable it gets. The result is a recursion engine that rewards a thin creature count rather than a deep one, which inverts the usual instinct to fill the yard. It enters producing only colorless mana and asks nothing of your color requirements, so the cost is paid entirely in card selection rather than fixing. As a one-shot sacrifice effect it is closer in spirit to a slow, self-consuming Raise Dead stapled to a land slot than to any repeatable engine, and the friction of the random clause is exactly what keeps a free-to-include land from being a strict upgrade over a tapland.