Collision theory, an Uncommon card

The card carries these facts from its Wikipedia article.

• It states that when suitable particles of the reactant hit each other with the correct orientation, only a certain amount of collisions result in a perceptible or notable change, these successful changes are called successful collisions.
• The successful collisions must have enough energy, also known as activation energy, at the moment of impact to break the pre-existing bonds and form all new bonds.
• This results in the products of the reaction.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Collision theory article was read about 24,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 64 and blocks with 29: each hit it takes is cut by 12 %.

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 Collision theory in the power ranking, all domains together.