Number C1000: Numerounius

5 Level 12 monsters
Once per turn (Quick Effect): You can detach 1 material from this card; destroy 1 other monster on the field. At the end of the Battle Phase: Destroy all other monsters on the field, then you can Special Summon 1 monster from your opponent's GY in Defense Position. If this card in your Monster Zone is destroyed by your opponent's card effect while it has material, and is sent to your GY: You can Special Summon 1 "Number iC1000: Numerounius Numerounia" from your Extra Deck, and if you do, attach this card to it as material.