You cannot Special Summon monsters, except "D/D/D" monsters. A "D/D/D" monster that was Fusion, Synchro, Xyz, or Link Summoned using this card on the field as material gains the following effect. • Once per turn: You can target 1 card on the field; shuffle 1 "Dark Contract" card from your field or GY into the Deck, and if you do, destroy that target, then gain 1000 LP. You can only use this effect of "D/D/D Vice King Requiem" once per turn.