Dark. Wyrm/Xyz/Effect. 2+ Level 10 monstersWhen your opponent activates a card or effect (Quick Effect): You can detach 1 material from this card; negate the activation, then you can detach 1 more material from this card, then destroy 1 card on the field. At the start of the Damage Step, if this card with material attacks: You can destroy 1 card on the field. If this Xyz Summoned card is destroyed: You can destroy 1 card on the field. You can only use each effect of "Varudras, the Final Bringer of the End Times" once per turn.