RZ Gruis, a Common card

The card carries these facts from its Wikipedia article.

• It is generally of apparent magnitude of 12.3 with occasional dimming to 13.4.
• Its components are thought to orbit each other roughly every 8.5 to 10 hours.
• It belongs to the UX Ursae Majoris subgroup of cataclysmic variable star systems, where material from the donor star is drawn to the white dwarf where it forms an accretion disc that remains bright and outshines the two component stars.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The RZ Gruis article was read about 300 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 46 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 RZ Gruis in the power ranking, all domains together.