Historical Rules · 20 November 2020
Rule 720.5d
Official source text from the 20 November 2020 Rules release
At the end of a subgame of an Archenemy game, any face-up scheme cards in the subgame command zone are turned face down and put on the bottom of their owner’s scheme deck. Then the archenemy moves their scheme deck from the subgame command zone to the main-game command zone and shuffles it.