Amulet of the Swarm

Wondrous item, rare (requires attunement by a barbarian, druid, or ranger)

Fangs, claws, feathers, fur, tails, scales, and bones from hang from this sweat-stained leather necklace.

Radiates: Conjuration and transmutation magic.

Power: You gain the vulture’s pack tactics trait.

Power: You may summon a swarm a number of times per day equal to your proficiency bonus. You may choose from bats, insects (including variants), poisonous snakes, quippers, rats, or ravens.

The swarm appears at the end of the round you summon it and remains for 1 minute, until your concentration ends, you die or become unconscious, or you choose to dismiss it as bonus action. You may use this power once per short or long rest and a number of times per day equal to your proficiency bonus.

You enjoy a limited two-way telepathy with the swarm; only simple thoughts, feelings, and sensory impressions can be shared. You may also choose to see, hear, smell, and taste through the swarm directly; doing so requires a bonus action to begin or end.

While you do, creatures have advantage to attack you and you have disadvantage on ability checks and saves.

Special: If you are a barbarian, you may sacrifice one rage per long rest to gain the quipper’s blood frenzy trait; this must be used during your next rage only.