Copy 2 cards from your opponent's deck and put them into your hand.
"What do you get when you cast Thoughtsteal on an Orc? Nothing!" - Tauren joke
 How to get
- Thoughtsteal copies two cards from your opponent's undrawn deck; it will not copy cards which have already been drawn. Your opponent is not able to see which two cards you get from their deck. Stolen cards can be used regardless of class. This allows the priest, a non-weapon class, to wield weapons, something which is normally not possible.
- Thoughsteal is unusual in that it allows you to draw cards from your opponent's deck. This can be useful strategically; the cards drawn can be used to deduce the style and content of the deck, and any card which is drawn by the priest is shown to currently be in their opponent's deck and not in their hand. On the other hand, this card gives you randomly selected cards from another player and class's deck. This can result in drawing cards that have little synergy with your own deck, or even little or no actual use, such as drawing Deadly Poison (unless you also steal a weapon card). However, playing Thoughtsteal does result in a net gain of one card, making it relatively efficient.
- If a priest uses Thoughtsteal against you, you can use knowledge of the cards remaining in your own deck to deduce which cards they may have drawn.
- One reason to include Thoughtsteal in a deck is simply to enjoy the unpredictable variety of drawing cards from another class mid-game. This can add an enjoyable element of RNG to the game, and defeating a player using their own stolen cards can be particularly entertaining.
- If Thoughtsteal is golden, the cards you steal will become golden even if they are plain in your opponent's deck. This has no benefit to you when using them, other than looking cool, but may tip off your opponent afterwards as to which cards were stolen from him.
While Thoughtsteal does not appear in Warcraft lore, it is similar to the Spellsteal mage spell from World of Warcraft in that it allows you to 'steal' spells from your opponent and use them as your own.