Darkness, an Uncommon card

The card carries these facts from its Wikipedia article.

• Under low light conditions, human vision becomes monochrome, a phenomenon termed scotopic vision.
• The lack of color comes from inactivity of cone cells, the type of photoreceptor cell on the retina that is responsible for the perception of color, but less sensitive to light than the rod cells.
• Scotopic vision takes place when luminance levels drops below the sensitivity threshold of cone cells, the other two type - mesopic and photopic vision - refers to vision under intermediate and normal lighting conditions.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Darkness article was read about 42,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 59 and blocks with 29: each hit it takes is cut by 12 %.

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 Darkness in the power ranking, all domains together.