Advanced format ruling
Reversal Quiz
Card effect (current official text)Send all cards in your hand and on your side of the field to the Graveyard. Call the type of card (Spell, Trap, or Monster) on top of your Deck. If you call it right, exchange your current Life Points with your opponent's current ones.
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.