The card is called “shuffle 3 shadows into your deck.”
The card can be an enemy card or your own card.
The rogue had many of these shuffle cards, when you should only have two.
So at the end of the game when the rogue was out of cards the rogues shuffled my very damaging card into their deck using two of these. On their next turn the cards automatically go RIGHT ON TO THE BOARD.
You don’t even have to use mana to play them.
The board is covered, and then they use togwoggle scheme cards to shuffle hundreds more into their empty cardholder.
WHAT WERE THE DEVS THINKING AND HOW DO YOU DEFFEAT THIS?