Unhinged (Magic: The Gathering)
Unhinged is the name of one of the few English-only expansions to the game Magic: The Gathering. It is a humorous parody set, and is far less serious than traditional Magic expansions. Mark Rosewater, lead designer for Magic: The Gathering, has written in several articles that, due to the nature of the humor and the many plays-on-words used in both Unhinged and Unglued, sets such as these will always be English language only. The only other English language only sets were released before Magic gained enough popularity to support foreign markets.
Read more about Unhinged (Magic: The Gathering): Background, Defining Aspects of The Set, Full Set Spoiler, Unhinged Secret Message