Djinn Prognosticator of Rituals [THSF-EN039] Super Rare

When you Ritual Summon a Ritual Monster, you can banish this card from your Graveyard as 1 of the monsters required for the Ritual Summon. If a player Ritual Summoned using this card, if that Ritual Summon monster inflicts battle damage to the other player, they discard 1 card.