Guido of Arezzo, an Uncommon card

The card carries these facts from its Wikipedia article.

• A monk from the Order of Saint Benedict, he is regarded as the inventor, or by some, developer, of the modern staff notation that had a massive influence on the development of Western musical notation and practice.
• Perhaps the most significant European writer on music between Boethius and Johannes Tinctoris, Guido wrote the Micrologus, the most widely distributed medieval treatise on music, after Boethius's De institutione musica.
• Biographical information on Guido is only available from two contemporary documents, though they give limited background, a basic understanding of his life can be unravelled.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Guido of Arezzo article was read about 44,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 73 and blocks with 87: each hit it takes is cut by 35 %.

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 Guido of Arezzo in the power ranking, all domains together.