Historical Rules · 24 January 2020
Rule 400.9
Official source text from the 24 January 2020 Rules release
If a face-up object in the command zone is turned face down, it becomes a new object.
Historical Rules · 24 January 2020
Official source text from the 24 January 2020 Rules release
If a face-up object in the command zone is turned face down, it becomes a new object.