This curious loop turns the humble act of tapping your creature into an engine for infinite scrying, letting you filter through your entire library at will. Freed from the Real enchants Moonfolk Puzzlemaker to provide the mechanical heartbeat, using its own untap ability fueled by the mana you generate. To pay for that untap, Earthcraft lets you tap Moonfolk Puzzlemaker to untap a basic Island, which you then tap for blue mana. Every single time Moonfolk Puzzlemaker is tapped this way, its own triggered ability fires off to let you scry 1.