Corrosion, an Epic card

The card carries these facts from its Wikipedia article.

• It is the gradual deterioration of materials by chemical or electrochemical reaction with their environment.
• Corrosion engineering is the field dedicated to controlling and preventing corrosion.
• In the most common use of the word, this means electrochemical oxidation of a metal reacting with an oxidant such as oxygen, or H3O+ ions present in aqueous solution.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Corrosion article was read about 580,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 77 and blocks with 61: 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 Corrosion in the power ranking, all domains together.