Algol, an Uncommon card

The card carries these facts from its Wikipedia article.

• Algol is a three-star system, consisting of Beta Persei Aa1, Aa2, and Ab – in which the hot luminous primary β Persei Aa1 and the larger, but cooler and fainter, β Persei Aa2 regularly pass in front of each other, causing eclipses.
• Thus Algol's magnitude is usually near-constant at 2.1, but regularly dips to 3.4 every 2.86 days during the roughly 10-hour-long partial eclipses.
• The secondary eclipse when the brighter primary star occults the fainter secondary is very shallow and can only be detected photoelectrically.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Algol article was read about 55,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 72 and blocks with 86: each hit it takes is cut by 34 %.

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 Algol in the power ranking, all domains together.