Tengu format ruling
Mind Crush
Card effect (current official text)Declare 1 card name; if that card is in your opponent's hand, they must discard all copies of it, otherwise you discard 1 random card.
Rulings
- You cannot activate this card if you do not have a card in your own hand.
- Your opponent must verify that they do not have extra copies of the declared card. They do this by revealing their entire hand, unless it can be otherwise proven that all possible copies are accounted for (eg, if they discarded 1 Tragoedia, a Limited card, they don’t reveal).
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.