Bejewel (OES)

A creature you can see within range must succeed on a Constitution saving throw or begin to spew jewels from its gullet. For the duration, the target can't speak or cast spells with verbal components, and it can use either an action or a bonus action on its turn, but not both.

At the end of each of its turns, the target can repeat its saving throw, ending the spell on a success.

Jewels of various sizes pour from the target's mouth each round. Jewels created by this spell are cold to the touch, are noticeably magical in nature, and disappear at the end of the spell's duration.