Djinn of Rituals

The "Djinn of Rituals", known as "Ritual Devils" in the Japanese version, are a series of DARK Fiend-Type monsters released in the Booster Packs Stardust Overdrive and Absolute Powerforce. They each share the effect text "When you Ritual Summon a Ritual Monster, you can remove from play 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 4 "Djinn of Rituals" released for the OCG so far have been "Djinn Releaser of Rituals", "Djinn Presider of Rituals", "Djinn Cursenchanter of Rituals" & "Djinn Prognosticator of Rituals". There has also been a fifth one released as a TCG exclusive, "Djinn Disserere of Rituals". The purpose of these Monsters is to make Ritual Summoning more viable. Even with the Djinn, Ritual Summoning tends to be unreliable and too costly.

Visually, all Djinn of Rituals monsters resemble strange, obese humanoids wielding weapons or magical tools. Their bodies are usually one single predominant color. Every Djinn has a skull somewhere on their weapon:
 * "Releaser": the middle of the Staff (it's pretty hard to see)
 * "Presider": the hilt of its Sword
 * "Cursenchanter": on the orb on its Magical Staff
 * "Prognosticator: over the orb on its Flail
 * "Disserere": middle of its Shield

Tips

 * Ritual Spell Cards that Ritual Summon a specified monster (for example, "Black Illusion Ritual") don't require you to use the exact Levels for the Ritual Summon. However, you can not remove extra "Djinn" Monster Cards beyond those which would be sufficient for any given Ritual Summon.
 * As was mentioned above, the Djinn of Rituals are DARK monsters. Thus, they are compatible with "Veil of Darkness", "Allure of Darkness", "Escape from the Dark Dimension", "Armageddon Knight", and "Dark Grepher".
 * The last 2 can make setting up a Ritual Summon insanely quick. By summoning "Armageddon Knight" and then having him drop a Djinn, you're instantly set up for just about any Ritual Monster you like.
 * The Djinn also have decent ATK/DEF scores in their own right, so don't be afraid to simply Summon them. Plus, even if they are destroyed, you can still use them for Ritual Summons.
 * Remember, the Ritual Spell Cards: "[[E