Midarizer is a machine in Fiend Folio, a mod for The Binding of Isaac.
Converts any rock trinket into its golden variant for 10¢.
Has a 50% chance to go to sleep, refusing to convert any more trinkets.
Cannot be destroyed.
Exclusive to Golem's Subway. Has a 20% chance to appear on an odd-numbered floor, and 5% chance on an even-numbered floor.