Irving Langmuir, an Uncommon card

The card carries these facts from its Wikipedia article.

• He was awarded the Nobel Prize in Chemistry in 1932 for his work in surface chemistry.
• Langmuir's most famous publication is the 1919 article "The Arrangement of Electrons in Atoms and Molecules" in which, building on Gilbert N. Lewis's cubical atom theory and Walther Kossel's chemical bonding theory, he outlined his "concentric theory of atomic structure".
• Langmuir became embroiled in a priority dispute with Lewis over this work, Langmuir's presentation skills were largely responsible for the popularization of the theory, although the credit for the theory itself belongs mostly to Lewis.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Irving Langmuir article was read about 33,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 68 and blocks with 60: each hit it takes is cut by 24 %.

Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.

The cards just above and just below Irving Langmuir in the power ranking, all domains together.