Brown dwarf, a Rare card

The card carries these facts from its Wikipedia article.

• Their mass is approximately 13 to 80 times that of Jupiter, not big enough to sustain nuclear fusion of hydrogen into helium in their cores, but massive enough to emit some light and heat from deuterium fusion, 2H, an isotope of hydrogen with a neutron as well as a proton, that can undergo fusion at lower temperatures.
• The most massive ones can fuse lithium.
• Astronomers classify self-luminous objects by spectral type, a distinction intimately tied to the surface temperature -- brown dwarfs occupy types M, L, T, and Y.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Brown dwarf article was read about 230,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 92 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 Brown dwarf in the power ranking, all domains together.