Carbenoid, a Common card

The card carries these facts from its Wikipedia article.

• Historically, certain types of metal carbene complexes have also been described as 'carbenoids', particularly in cases where the bonding or electronic structure is unclear.
• However, the contemporary trend is to refer to a transition metal complex [M]CR2 with metal–carbon bonding of any type as a metal carbene, while reserving the term carbenoid for a species, usually based on a main-group metal, of type M–CR2–X that behaves as a synthetic equivalent of :CR2.
• More often than not, the free carbene is never formed when the carbenoid reacts.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Carbenoid article was read about 2,700 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 42 and blocks with 12: each hit it takes is cut by 5 %.

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 Carbenoid in the power ranking, all domains together.