Advanced format ruling
Ordeal of a Traveler
Card effect (current official text)When an opponent's monster declares an attack: Your opponent chooses 1 random card in your hand and calls the type of the card (Monster, Spell, or Trap), and if they call it wrong, return the attacking monster to the hand.
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.