Magic Items

A creature that ingests this poison suffers no effect until the stroke of midnight. If the poison has not been neutralized before then, the creature must succeed on a DC 17 Constitution saving throw, taking 31 (9d6) poison damage on a failed save, or half as much damage on a successful one.

Level 5 award

A creature subjected to this poison must succeed on a DC 15 Constitution saving throw or become poisoned for 4d6 hours. The poisoned creature is incapacitated.

This gem contains a mote of elemental energy. When you use an action to break the gem, an earth elemental is summoned as if you had cast the conjure elemental spell, and the gem's magic is lost.