Djinn of Rituals, known as "Ritual Genie" (儀（ぎ）式（しき）魔（ま）人（じん） Gishiki Majin) in the Japanese version, is a series of DARK Fiend-Type monsters released in the Booster Packs Stardust Overdrive and Absolute Powerforce, and gained another member on Duelist Alliance. They each share the effect text "When you Ritual Summon a Ritual Monster, you can banish this card from your Graveyard as one of the monsters required for the Ritual Summon.", followed by their individual effects, which are given to the Ritual Monster they were used to Summon. The purpose of these Monsters is to make Ritual Summoning more viable.