Orthanc

Orthanc enters the battlefield tapped unless you control two or fewer lands.
{t}: Add {r} or {w} to your mana pool.
A peak and isle of rock it was, black and gleaming hard: four mighty piers of many-sided stone were welded into one, but near the summit they opened into gaping horns, their pinnacles sharp as the points of spears. Between them was a narrow space, and there upon a floor of polished stone a man might stand five hundred feet above the plain.