Number C39: Utopia Ray [RA04-EN174] Quarter Century Secret Rare

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.