Petrochemical, an Uncommon card

The card carries these facts from its Wikipedia article.

• Some chemical compounds made from petroleum are also obtained from other fossil fuels, such as coal or natural gas, or renewable sources such as maize, palm fruit or sugar cane.
• The two most common petrochemical classes are olefins and aromatics.
• Oil refineries produce olefins and aromatics by fluid catalytic cracking of petroleum fractions.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Petrochemical article was read about 85,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 64 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 Petrochemical in the power ranking, all domains together.