This ingenious engine transforms a simple imprint setup into an unstoppable loop by turning your utility pieces into active participants with March of the Machines, which grants Soul Foundry a power and toughness equal to its mana value so it can be untappable. Because Memnite has a mana value of zero, Soul Foundry can be activated for free to continually churn out copies of the artifact creature. Every time a new Memnite token hits the battlefield, Intruder Alarm triggers to untap all creatures—including the animated Soul Foundry itself—readying it to tap and repeat the process indefinitely for infinite creature tokens and enters-the-battlefield triggers.