This loop relies on a clever loop of identity theft and sacrifice to continually trigger enters-the-battlefield abilities. When Technomancer hits the battlefield, its entry trigger lets you pull Synth Infiltrator from your graveyard straight back into play as a fresh copy of Technomancer. Before that new copy's own trigger can resolve, Bartolomé del Presidio steps in to sacrifice the cloned Technomancer, fueling endless iterations of this recycling cycle while growing Bartolomé del Presidio larger with every sacrifice.