It does not ask to be played. It only waits, patiently, for someone hungry enough to pick it up anyway.
A pear-shaped instrument of dark wood and old silver strings, unremarkable to look at until it's played. When a note is struck, a thick, liquid ribbon of golden light pours from its base into whatever ground it rests on, and that light spider-webs outward, driving a fissure deeper into the earth with every note that follows. It was found deep inside a fractured temple in the high peaks, a site touched by Caro Vanta's influence, alongside worn instrument strings, empty wine bottles, and a charcoal sketch of hands playing it, fingers far too long, with too many joints.
Nobody knows who built it, or whether "built" is even the right word for something that seems less like a crafted item and more like a hunger that happens to be shaped like an instrument.
Every note struck while the Oud is played drives a fissure into the ground beneath it, deepening and spreading the longer the piece continues. Left unchecked, this is capable of splitting open a mountain range.
The Oud doesn't compel a specific victim so much as it amplifies whatever hunger, ambition, or unfinished want its player already carries, Caro Vanta's own domain. The more talented and unsatisfied the player, the tighter its hold.
A piece that builds endlessly toward a resolution it's never allowed to reach. Finishing it was never really the point, wanting to finish it is. Interrupting the player mid-performance (as Elias's killers did) ends the effect immediately.
Without someone playing it, the Oud is just wood, silver, and old varnish. It has never been observed to act on its own.
No formal mechanical write-up (bonus, DCs, activation cost) has been drafted yet, mechanics to come if it ever comes back into play. This page is the lore and effects as observed, not a usable game stat block.
Following the encounter on the mountain, the Oud was carefully secured, placed in lead-lined transport, and delivered directly into the hands of the Archivists, a specialized library order dedicated to the safekeeping and isolation of dangerous artifacts. It remains locked deep within their vault. As far as anyone knows, it hasn't been played since.