Bioreactor, an Uncommon card

The card carries these facts from its Wikipedia article.

• In one case, a bioreactor is a vessel in which a chemical process is carried out which involves organisms or biochemically active substances derived from such organisms.
• This process can either be aerobic or anaerobic.
• These bioreactors are commonly cylindrical, ranging in size from litres to cubic metres, and are often made of stainless steel.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Bioreactor article was read about 34,000 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 Bioreactor in the power ranking, all domains together.