You can Ritual Summon this card with any Nekroz Ritual Spell Card. Must be Ritual Summoned without using Nekroz of Brionac , and cannot be Special Summoned by other ways. You can only use each of these effects of Nekroz of Brionac once per turn.
• You can discard this card; add 1 Nekroz monster from your Deck to your hand, except Nekroz of Brionac .
• You can target up to 2 face-up monsters on the field that were Special Summoned from the Extra Deck; shuffle them into the Deck.