Lost Ruins of Arnak: Soothsayer's Runes Promo Card

Originally available as part of Pack C from the Dice Tower 2021 Kickstarter campaign. Later, available as part of the 2023 Game Boy Geek Season 11 Kickstarter. Text on the card: Choose an opponent’s deck. Pick any card from the deck and copy its effect. Then place their card on top of their deck.