Advanced format ruling
Elemental HERO Prisma
Card effect (current official text)Once per turn: You can reveal 1 Fusion Monster from your Extra Deck, then send 1 of the Fusion Materials whose name is specifically listed on that card from your Deck to the Graveyard; this card's name becomes the sent monster's until the End Phase.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.