Cheapest priced copy (Eldritch Moon): $0.69 at Card Kingdom, near mint, their price list as of .
Cryptolith Fragment // Aurora of Emrakul 
Artifact // Creature — Eldrazi Reflection · Uncommon · Eldritch Moon · #193
This artifact enters tapped.
{T}: 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.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.69 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 193 | Uncommon | $0.69 | $1.99 |
| Innistrad Remastered | 260 | Uncommon | $0.69 | $0.79 |
| Innistrad Remastered | 472 | Uncommon | $0.99 | $1.99 |
5 rulings from Wizards of the Coast
- 24 January 2025In a Two-Headed Giant game, Cryptolith Fragment’s last ability checks whether each team’s life total is 10 or less.
- 24 January 2025In a Two-Headed Giant game, Cryptolith Fragment’s mana ability causes each player to lose 1 life, so each team loses 2 life.
- 24 January 2025Cryptolith Fragment’s second ability is a mana ability. Players can’t respond to it or to the loss of life it causes.
- 24 January 2025In a Two-Headed Giant game, Aurora of Emrakul’s last ability causes each opponent to lose 3 life, so the opposing team loses a total of 6 life.
- 24 January 2025If any player has 11 or more life as your upkeep begins, Cryptolith Fragment’s last ability doesn’t trigger. If any player has 11 or more life as the ability resolves, the ability has no effect.