Cleon
Legend
Create spawn would suffice. However, since we're doing the slaugh as a swarm, the create spawn for fey doesn't work. Perhaps something more akin to a death knell--the slaugh gains hit points (which become temporary if it's at max) and a temporary bonus to saving throws?
I thought we were planning on statting up individual Sluagh after we've finished the Swarm version, which would mean the Create Spawn on Fey would have a use.