Historical Rules · 30 September 2011
Rule 107.13
Official source text from the 30 September 2011 Rules release
The sun symbol appears in the upper left corner of the front face of double-faced cards. See rule 711, "Double-Faced Cards."
Historical Rules · 30 September 2011
Official source text from the 30 September 2011 Rules release
The sun symbol appears in the upper left corner of the front face of double-faced cards. See rule 711, "Double-Faced Cards."