Sound, a Rare card

The card carries these facts from its Wikipedia article.

• In the context of physics, it is characterised as a mechanical wave of pressure or related quantities, whereas in physiological-psychological contexts it implies a hearing process.
• Though sensitivity to sound varies among all organisms, the human ear is sensitive to audio frequencies ranging from 20 Hz to 20 kHz.
• More broadly, acoustic waves encompass mechanical longitudinal waves in general.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Sound article was read about 290,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 75 and blocks with 83: each hit it takes is cut by 33 %.

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 Sound in the power ranking, all domains together.