Djinn Cursenchanter of Rituals (THSF-EN038) - The Secret Forces Unlimited

When you Ritual Summon a Ritual Monster, you can remove from play this card from your Graveyard as 1 of the monsters required for the Ritual Summon. While the monster Ritual Summoned using this card is face-up on the field, Synchro Monsters' effects are negated.