Numeron Chaos Ritual (MGED-EN050)

If a face-up "Number C1: Numeron Chaos Gate Sunya" you control was destroyed by a monster effect this turn: You can target 1 of your "Numeron Network", and 4 of your "Number" Xyz Monsters, that are banished or in your GY; Special Summon 1 "Number C1000: Numerounius" from the Extra Deck that becomes 10,000 ATK/1000 DEF, and if you do, attach all 5 targets to it as material, also you can only Normal or Special Summon once for the rest of this turn.

spell / Normal, Maximum Gold: El Dorado