This recursive loop hinges on Technomancer and Phyrexian Metamorph continuously resurrecting each other from the graveyard through their own entering-the-battlefield triggers, since a Metamorph copying Technomancer easily meets the condition to pull a fellow artifact creature with a mana value of 6 or less out of the bin. Meanwhile, Megatog provides the crucial outlet to sacrifice the copying Metamorph in response to its own trigger, resetting the loop and fueling the Megatog with massive +3/+3 power boosts and trample along the way.