Optical illusion, an Uncommon card

The card carries these facts from its Wikipedia article.

• Illusions come in a wide variety, their categorization is difficult because the underlying cause is often not clear but a classification proposed by Richard Gregory is useful as an orientation.
• According to that, there are three main classes: physical, physiological, and cognitive illusions, and in each class there are four kinds: Ambiguities, distortions, paradoxes, and fictions.
• A classical example for a physical distortion would be the apparent bending of a stick half immersed in water, an example for a physiological paradox is the motion aftereffect.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Optical illusion article was read about 86,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 78 and blocks with 79: each hit it takes is cut by 32 %.

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 Optical illusion in the power ranking, all domains together.