Humboldt Cave, a Common card

The card carries these facts from its Wikipedia article.

• Thirty-one caches were excavated from the cave, but there is only one radiocarbon date of 1953±175 14C BP from the cave, which suggests that Humboldt Cave may have only been a single cultural component.
• In other words, the caches from the cave may have only been deposited once and at the same time.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Humboldt Cave article was read about 1,400 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 50 and blocks with 43: each hit it takes is cut by 17 %.

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 Humboldt Cave in the power ranking, all domains together.