Talk:Heavenly Crystal Dragon, Aldo Athora/@comment-26021817-20180221003901

Somthing has come to my attention in one of the buddyfight groups I am in. It has been said that this cards overturn can only be declared before on attack effects trigger. Such as Mirrors Valley.

If this is true could it be added to the Overturn page as a known rule? As to avoid confusion amongst new players?