Crow Coin (Patreon)

Wondrous item, uncommon

A crow coin is a magical coin coveted by crows. You can use an action to toss this coin on the ground in a space within 10 feet of you or hold the coin aloft. A swarm of crows then magically appears atop the coin (use the statistics for a swarm of ravens). The swarm remains for 1 hour or until it's reduced to 0 hit points, at which point the swarm and coin both vanish.

For the duration of the effect, you can telepathically command the swarm (no action required) and are magically aware of what it collectively sees and hears, provided that it's within 1 mile of you. The swarm is friendly to you and your companions. In combat, the swarm acts independently of you, but it always obeys your commands. If you issue no commands, the swarm defends itself but takes no other actions. It rolls its own initiative and acts on its own turn.

Whenever a swarm of crows is summoned in this way, there's a 20 percent chance that a giant crow appears instead (use the statistics for a giant eagle); you gain the same benefits with the giant crow as you do with the swarm, and it lasts for the same duration. Like the swarm, the coin vanishes along with the giant crow.

"So you know how these are for the crows, right? Since they've got crows on 'em?"

"Yeah, so?"

"Then why's the king always puttin' his faces on coins?"

"Oh, those coins are for the crows too. You just get a better return with these.