Charles Martin Hall, an Uncommon card

The card carries these facts from its Wikipedia article.

• He is best known for his invention in 1886 of an inexpensive method for producing aluminium, which became the first metal to attain widespread use since the prehistoric discovery of iron.
• He was one of the founders of Alcoa, along with Alfred E. Hunt, Hunt's partner at the Pittsburgh Testing Laboratory, George Hubbard Clapp, Hunt's chief chemist, W. S. Sample, Howard Lash, head of the Carbon Steel Company, Millard Hunsiker, sales manager for the Carbon Steel Company, and Robert Scott, a mill superintendent for the Carnegie Steel Company.
• Together they raised $20,000 to launch the Pittsburgh Reduction Company, which was later renamed Aluminum Company of America and then shortened to Alcoa.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Charles Martin Hall article was read about 24,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 63 and blocks with 47: each hit it takes is cut by 19 %.

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 Charles Martin Hall in the power ranking, all domains together.