Transfinite induction, an Uncommon card

The card carries these facts from its Wikipedia article.

• Its correctness is a theorem of ZF, and relies on the fact that the ordinal numbers are well-ordered, and thus a statement that is not universally true for all ordinals must have a minimal counterexample.
• In fact, this principle is also true for arbitrary well-ordered sets, but since any well-ordered set can be indexed by ordinals in an order-preserving way, it suffices to establish the principle for ordinals.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Transfinite induction article was read about 26,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 54 and blocks with 25: each hit it takes is cut by 10 %.

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 Transfinite induction in the power ranking, all domains together.