■ You may only cast this card if your flag is "Dragon Ein". ■ Choose and use one of the following two. You may only cast "Sinister Symphony" once per turn. ・Put up to one card with "Azi Dahaka" in its card name, and up to one "Dragon Throne" from your deck into your hand, and shuffle your deck. ・For this turn, all items on your field get [Penetrate] and [Double Attack].