Foundry of the Consuls

A colorless source that produces a single colorless mana for most of the game, then converts itself into bodies once the game has stalled. The math is deliberately unkind: six total mana (five plus the tap) and the land itself to manufacture two 1/1 fliers, a rate that would embarrass a creature spell on the front of a turn. That inefficiency is the point. A land that can quietly become two evasive blockers or two attackers in the late game is a mana-sink with almost no opportunity cost in the early game, because it was already going to sit in the manabase doing land things. It belongs to the small family of utility lands whose second mode only matters once you have run out of better things to spend mana on: it never costs you a spell slot, it never asks a color, and it sacrifices itself so the Thopters arrive as pure upside rather than a tempo investment you have to protect. The flying tokens slot into any artifact-adjacent plan: a pair of Thopters feeds anything that cares about token bodies, flying chump blockers, or fodder for a sacrifice engine. The card's whole identity rests on being a land first and a payoff a distant second, the kind of slot a deck can afford precisely because it asks for nothing until the game has already gone long.