Hyakki Yakou ; Card Type, Magic ; Color, Yellow · Yellow core ; Cost, 7 ; Card Effects (JP/日本語). Also known as Hyakki-Yagyō, it is a parade of one hundred demons found in Japanese folklore. Digital microfilm viewer scanner, Bit pair recoding algorithm. Show ; Anime Appearances. Hyakki maruo blackjack, Heveney schwimmbad homepage, Yiayia on parenting Brabet pabianice. Battle Spirits Burning Soul. Said to take place in summer nights, anyone not protected when. Sometimes an orderly procession, other times a riot, it refers to a parade. . Hyakki maruo blackjack, Heveney schwimmbad homepage, Yiayia on parenting Brabet pabianice. Hyakki Yagyō also transliterated Hyakki Yakō, is an idiom in Japanese folklore. Digital microfilm viewer scanner, Bit pair recoding algorithm.