Historical Rules · 27 September 2013
Rule 711.1b
Official source text from the 27 September 2013 Rules release
A double-faced card's back face is indicated by the moon symbol in its upper left corner.
Historical Rules · 27 September 2013
Official source text from the 27 September 2013 Rules release
A double-faced card's back face is indicated by the moon symbol in its upper left corner.