Ytterbium, an Uncommon card

The card carries these facts from its Wikipedia article.

• It is a metal, the fourteenth element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state.
• Like the other lanthanides, its most common oxidation state is +3, as in its oxide, halides, and other compounds.
• In aqueous solution, like compounds of other late lanthanides, soluble ytterbium compounds form complexes with nine water molecules.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Ytterbium article was read about 78,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 74 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 Ytterbium in the power ranking, all domains together.