Historical Rules · 16 January 2016
Rule 711.9
Official source text from the 16 January 2016 Rules release
Double-faced permanents can’t be turned face down. If a spell or ability tries to turn a double-faced permanent face down, nothing happens.
Historical Rules · 16 January 2016
Official source text from the 16 January 2016 Rules release
Double-faced permanents can’t be turned face down. If a spell or ability tries to turn a double-faced permanent face down, nothing happens.