Mishra's Foundry

Manlands answer the question that makes lands dangerous: how do you fit a threat into a mana base without diluting it? This one leans on the older, sturdier version of that answer, the animate-and-attack land that turns itself into a body rather than committing a spell to the board. It taps for colorless, and for two mana it animates itself into a 2/2 Assembly-Worker that stays a land, which is the whole trick: a creature that arrives without a card in hand and slips back to being a land before it can be caught out. But the third line is the one that reveals its ambition. For one mana and a tap, it can pump an attacking Assembly-Worker by +2/+2, including one that isn't itself. That clause turns a lone utility land into the seed of a small tribal engine, wanting a board of Assembly-Workers to feed rather than just to be one. The lineage runs straight through Mishra's Factory, which proved a colorless source could double as a repeatable body and pump its own kind in the same breath. This is a deliberate extension of that skeleton: keep the animate-and-swing frame, keep the tribal pump, and stack multiple copies so the boost compounds across a swarm. What pays for the package is the colorless output. It fixes nothing, so a color-hungry deck accepts a land that does one job off-combat and saves its real value for the attack step.