Lore11 Level 13 monsters
You can only Summon 1 "Number C39: Utopia Ray Universe" once per Duel. Must be Xyz Summoned and cannot be Special Summoned by other ways. This card's Summon cannot be negated. When this card is Xyz Summoned: You can detach all Xyz Materials from this card, also shuffle as many monsters detached by this way to the Main Deck. Once per turn: You can pay half your Life Points; attach 1 "Utopia" monster from your Graveyard to this card as an Xyz Material. When this card has (exactly) 20 "Utopia" Xyz Monsters as this card's Xyz Materials, while this card's Xyz Materials are Xyz Monsters (and only those): You win the Duel.