Galactic habitable zone, an Uncommon card

The card carries these facts from its Wikipedia article.

• The concept of a galactic habitable zone analyzes various factors, such as metallicity and the rate and density of major catastrophes such as supernovae, and uses these to calculate which regions of a galaxy are more likely to form terrestrial planets, initially develop simple life, and provide a suitable environment for this life to evolve and advance.
• According to research published in August 2015, very large galaxies may favor the birth and development of habitable planets more than smaller galaxies.
• In the case of the Milky Way, its galactic habitable zone is commonly believed to be an annulus with an outer radius of about 10 kiloparsecs and an inner radius close to the Galactic Center.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Galactic habitable zone article was read about 21,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 68 and blocks with 71: each hit it takes is cut by 28 %.

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 Galactic habitable zone in the power ranking, all domains together.