Edison Format · March 2010
"Shadow of Eyes" can be activated when a monster is Special Summoned in face-down Defense Position.
"Shadow of Eyes" can be activated when multiple monsters are Special Summoned in face-down Defense Position by the same effect. In this case, select a monster when you activate "Shadow of Eyes".
"Shadow of Eyes" can be activated when "Guardian Sphinx" is flipped face-down by its effect.