2 Level 10 Fiend monsters You can also Xyz Summon this card by using a "D/D/D" monster you control as material. (Transfer its materials to this card.) You can only control 1 "D/D/D Deviser King Deus Machinex" in your Monster Zone. Once per Chain, when a Monster Card your opponent controls activates its effect (Quick Effect): You can either detach 2 materials from this card, or destroy 1 "Dark Contract" card you control, and if you do, attach that opponent's card to this card as material. Once per turn, during your Standby Phase: You can place this card in your Pendulum Zone.