Recap: Batman: The Animated Series E54 "Zatanna" aka: Batman The Animated Series Zatanna
Futureshadowing: In a flashback, young Zatanna does a card trick with young Bruce (under the alias "John Smith") to predict his future. She thinks Bruce got "two of hearts", but he's got a Joker card.
Zatanna: (throws the cards in anger) It's a dumb trick anyway!
Maybe Magic, Maybe Mundane: Zatanna seems like an ordinary stage magician until the end, when she pulls a disappearing act on Batman. Justice League simply presents her with her usual complement of magical powers.
You Got Spunk: The villain tells Zatanna, while holding her at knife point, "You are most engaging, my dear — beautiful, impetuous... I could be persuaded to spare you if properly implored..." CRUNCH Cut to Zatanna's heel crushing his foot.