Breeder reactor, an Uncommon card

The card carries these facts from its Wikipedia article.

• These reactors can be fueled with more commonly available isotopes of uranium and thorium, such as uranium-238 and thorium-232, as opposed to the rare uranium-235 which is used in conventional reactors.
• These materials are called fertile materials since they can be bred into fuel by these breeder reactors.
• Breeder reactors achieve this because their neutron economy is high enough to create more fissile fuel than they use.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Breeder reactor article was read about 130,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 83 and blocks with 89: each hit it takes is cut by 36 %.

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 Breeder reactor in the power ranking, all domains together.