Swarm
Creatures with the Swarm Creature Tag can come together to form a Swarm. To form a Swarm, there needs to be 5 or more of the same creature within a Spitting Distance of one another. When this happens, the group can form together into a Swarm as a Free Action.
As a Swarm, the creatures are no longer tracked individually, but share a pool of Health and Vitality equal to the sum of all their Health and Vitality combined. A Swarm starts as a Sphere Shape with a Spitting Distance diameter. For every 5 creatures in the Swarm after the first 5, this area doubles in size (covering a Throwing Distance wide sphere at 10 creatures and a Shooting Distance wide sphere at 15 creatures.) A Swarm can use any Abilities of its creatures to target any or all creatures within their Swarm area simultaneously. For every 5 creatures in the Swarm, they also gain an Advantage on any Tests for the Abilities they perform.