Cryptolith Fragment enters the battlefield tapped.
T: Add one mana of any color to your mana pool. Each player loses 1 life.
At the beginning of your upkeep, if each player has 10 or less life, transform Cryptolith Fragment.
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Aurora of Emrakul
Flying, deathtouch
Whenever Aurora of Emrakul attacks, each opponent loses 3 life.
This artifact enters tapped. : Add one mana of any color. Each player loses 1 life. At the beginning of your upkeep, if each player has 10 or less life, transform this artifact.
Flying, deathtouch Whenever this creature attacks, each opponent loses 3 life.
: Add one mana of any color. Each player loses 1 life.