Advanced format ruling
Marionette Mite
Card effect (current official text)You can discard this card to the GY, then target 1 Fiend or Zombie monster your opponent controls; take control of that target until the End Phase.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.