Hexerei
Ein Gegner deiner Wahl zeigt die Karten auf seiner Hand offen vor. Du bestimmst davon eine Nichtland-Karte. Der Spieler wirft die bestimmte Karte ab. Du kannst eine Karte mit einem Abenteuer, die der Spieler besitzt, aus dem Exil auf den Friedhof des Spielers legen.
You choose which exiled adventurer card, if any, to put into that player's graveyard after seeing their hand. You may do this even if that player has no nonland cards in hand, or even no cards at all.
If an effect refers to a card, spell, or permanent that has an Adventure, it won't find an instant or sorcery spell on the stack that's been cast as an Adventure.
An effect may refer to a card, spell, or permanent that "has an Adventure." This refers to a card, spell, or permanent that has an adventurer card's set of alternative characteristics, even if they're not being used and even if that card was never cast as an Adventure.
Memory Theft allows you to put any face-up exiled card with an Adventure that player owns into their graveyard, not just one that was cast as an Adventure and exiled.