Number C39: Utopia Ray

[ Warrior / Xyz / Effect ] 3 Level 4 LIGHT monsters You can also Xyz Summon this card by using a "Number 39: Utopia" you control as material. (Transfer its materials to this card.) You can detach 1 material from this card; it gains 500 ATK until the end of this turn, and if it does, 1 monster your opponent controls loses 1000 ATK until the end of this turn. You must have 1000 LP or less to activate and to resolve this effect. ATK/ 2500 DEF/ 2000