Historical Rules · 4 October 2019
Rule 400.9
Official source text from the 4 October 2019 Rules release
If a face-up object in the command zone is turned face down, it becomes a new object.
Historical Rules · 4 October 2019
Official source text from the 4 October 2019 Rules release
If a face-up object in the command zone is turned face down, it becomes a new object.