Evigishki Zeal Gigas

Cannot be Normal Summoned or Set. Must first be Ritual Summoned. You can Ritual Summon this card with any "Gishki" Ritual Spell Card. Once per turn: You can pay 1000 Life Points; draw 1 card, and reveal it. If it is a "Gishki" monster, shuffle 1 card on the field to the Deck.