Geothermal gradient, an Uncommon card

The card carries these facts from its Wikipedia article.

• As a general rule, the crust temperature rises with depth due to the heat flow from the much hotter mantle, away from tectonic plate boundaries, temperature rises with depth at a rate of about 25–30 °C/km near the surface in the continental crust.
• However, in some cases the temperature may drop with increasing depth, especially near the surface, a phenomenon known as inverse or negative geothermal gradient.
• The effects of weather and climate are shallow, only reaching a depth of roughly 10–20 m.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Geothermal gradient article was read about 48,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 69 and blocks with 62: each hit it takes is cut by 25 %.

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 Geothermal gradient in the power ranking, all domains together.