Historical Rules · 11 November 2016
Rule 904.4
Official source text from the 11 November 2016 Rules release
At the start of the game, the archenemy shuffles his or her scheme deck so that the cards are in a random order. The scheme deck is placed face down next to the archenemy’s library. All scheme cards remain in the command zone throughout the game, both while they’re part of a scheme deck and while they’re face up.