As each row is dealt, the cards within it are added up to get a total. If any of the cards in the row are identical to either of the two cards directly above it, they'll catch fire and you'll lose the hand. This is known as "Misfortune". However, there are two ways to avoid this loss. If the card in the first row is still available, it will take the place of the losing card (though it may still match one of the two cards directly, in which case you still lose). Another saviour is the knight card, which automatically negates any cards that have burned up within the same row.