D/D/D Duo-Dawn King Kali Yuga

2 Level 8 "D/D" monsters After this card is Xyz Summoned, for the rest of this turn, other cards and their effects cannot be activated on the field, and other cards' effects on the field are negated. Once per turn (Quick Effect): You can detach 1 material from this card; destroy all Spells and Traps on the field. You can detach 1 material from this card, then target 1 "Dark Contract" Spell/Trap in your GY; Set that target.