from UDE's Judge Certification Program (YGO)
The player controls Elemental Hero Prisma. He activates its effect, revealing Dark Paladin to send Dark Magician to the Graveyard and change its name to Dark Magician. He then equips his false Dark Magician with Magic Formula. During the End Phase, he becomes Elemental Hero Prisma again. What happens to Magic Formula?
http://entertainment.upperdeck.com/community/forums/thread/1560032.aspx
The player controls Elemental Hero Prisma. He activates its effect, revealing Dark Paladin to send Dark Magician to the Graveyard and change its name to Dark Magician. He then equips his false Dark Magician with Magic Formula. During the End Phase, he becomes Elemental Hero Prisma again. What happens to Magic Formula?
http://entertainment.upperdeck.com/community/forums/thread/1560032.aspx