Gnathostomata, an Uncommon card

The card carries these facts from its Wikipedia article.

• Gnathostome diversity comprises roughly 60,000 species, which accounts for 99% of all extant vertebrates, including all living bony fishes and cartilaginous fishes, as well as extinct prehistoric fish such as placoderms and acanthodians.
• Most gnathostomes have retained ancestral traits like true teeth, a stomach, and paired appendages.
• Other traits are elastin, horizontal semicircular canal of the inner ear, myelinated neurons, and an adaptive immune system which has discrete lymphoid organs and uses VJ recombination to create antigen recognition sites, rather than using genetic recombination in the variable lymphocyte receptor gene.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Gnathostomata article was read about 170,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 70 and blocks with 56: each hit it takes is cut by 22 %.

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 Gnathostomata in the power ranking, all domains together.