ACE inhibitor, an Uncommon card

The card carries these facts from its Wikipedia article.

• This class of medicine works by causing relaxation of blood vessels as well as a decrease in blood volume, which leads to lower blood pressure and decreased oxygen demand from the heart.
• ACE inhibitors inhibit the activity of angiotensin-converting enzyme, an important component of the renin–angiotensin system which converts angiotensin I to angiotensin II, and hydrolyzes bradykinin.
• Therefore, ACE inhibitors decrease the formation of angiotensin II, a vasoconstrictor, and increase the level of bradykinin, a peptide vasodilator.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The ACE inhibitor article was read about 78,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 79 and blocks with 81: each hit it takes is cut by 32 %.

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 ACE inhibitor in the power ranking, all domains together.