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.
Rulings
Individual Card FAQs
Sending all cards in the hand and on the field to the Graveyard is a cost. If there are no cards in your hand or on the field you cannot activate this card. You must have a card either in your hand or on the field to activate this card.
Netrep Q&As
Q: If I activate “Reversal Quiz” with a “Black Pendant” on the field, does the damage from “Black Pendant” occur before or after our Life Points are exchanged?A: After. Curtis Schultz, 04/04/2004