You can Ritual Summon this card with any "Nekroz" Ritual Spell. Must be Ritual Summoned from your hand, by using 3 monsters in your hand or GY with different Types. During the Main Phase 1 (Quick Effect): You can discard this card and 1 "Nekroz" Spell; your opponent cannot activate cards or effects from the hand or GY during this phase. When this card is Ritual Summoned: You can shuffle all other cards into the Deck, from each player's field, GY, and face-up Extra Deck. You cannot Normal Summon/Set or Special Summon other monsters the turn you activate this effect.