This elegant green-mana engine relies on Topiary Lecturer to directly convert its own considerable power into a massive influx of green mana each time it taps. Meanwhile, Sword of the Paruns steps in as the mechanical bridge, offering an activated ability that untaps the equipped creature for a flat three mana. Because the Lecturer's tap produces more green mana than the sword's untap cost demands, you are left with a surplus of mana on every single loop, generating infinite green mana and infinite untaps.