Viola arvensis, a Common card

The card carries these facts from its Wikipedia article.

• It is native to Europe, western Asia, and North Africa, and it is known on other continents as an introduced species and a weed of disturbed and cultivated areas.
• Viola arvensis was shown to contain cyclotides, a class of peptides found in plants.
• The peptide cycloviolacin O2 in particular has shown to possess cytotoxic activity against human cancer cells and is therefore looked at as a potential drug lead.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Viola arvensis article was read about 4,200 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 35 and blocks with 15: each hit it takes is cut by 6 %.

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 Viola arvensis in the power ranking, all domains together.