6eeba363_onsters___Yu_Gi_Oh__Card_Guide__Card_Text
[Card Name] Number 99: Utopic Dragon [Type] Xyz/Effect Monster [Attribute] LIGHT [Sub Type] Dragon [ATK] 4000 [DEF] 2000 [Card Text] 
3 Level 10 monsters You can also Xyz Summon this card by discarding 1 "Rank-Up-Magic" Spell Card and using a "Utopia" monster you control as the Xyz Material. (Xyz Materials attached to that monster also become Xyz Materials on this card.) Once per turn: You can target 1 "Number" monster in your Graveyard; Special Summon it in Defense Position, but its effects are negated. During either player's turn, when a monster effect is activated that targets this face-up card: You can detach 1 Xyz Material from this card; negate the activation, and if you do, destroy that card.
Yu-Gi-Oh! Level 10 Monsters - Yu-Gi-Oh! Card Guide