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Question about The Cards Spy - Can a Spy steal Wizards, Magic Actions, Magic Books, and Dragons?

Answer

Spys can only steal Action Cards and Units: Magic Actions are Action Cards and Dragons are Units, which is why the Spy can steal them. Wizards are Region Improvements and Magic Books are a card type of their own: both can not be stolen by Spies.

Note: All mentioned cards are part of the Catan Card Game – Expansion Set.