Gehrman Marionette Theater

At the beginning of your upkeep, each player chooses a creature their opponent controls. If they control no creatures, they lose 3 life instead. The chosen creatures become 0/1 artifact creature tokens named "Doll of The Doll" with "When this creature dies, transform it back as it was."

If a player controls exactly three "Doll of The Doll" tokens, he sacrifices all of them without triggering their effect, then sacrifice Gehrman Marionette Theater.