The Monumental Facade

A colorless land that taps for mana is the safest engine slot a deck can build around: it costs no color commitment, it never sits dead, and it converts into something else once the mana no longer matters. Here the "something else" is a pair of oil counters, spent one at a time to seed an artifact or creature you control with a counter of its own. The whole design turns on that conversion. For the early turns this produces colorless mana while quietly storing two charges; once the game slows and the mana stops mattering, those charges become permanent counters on your board, ready to be doubled or advanced by anything that cares about oil. The sorcery-speed restriction is the cost that rules out any defensive instant-speed pump: you commit the counter on your own turn, in the open, which points the payoff toward decks already leaning on a proliferate or counter-matters plan rather than reactive ones. It is a resource that changes shape rather than a card doing two things at once, and the appeal is the asymmetry: the mana-producing half asks for nothing while the counter half waits for a board worth investing in. Counter-synergy infrastructure dressed as a land, which is exactly how it earns a slot without costing one.