This book contains six new playable rodent species, a new the Swarm Leader class, and seven new monsters.
The playable rodent species are rat folk which will be acceptable to most DM’s, the tiny awakened mice and rats, awakened giant rats, and fairy tale rats and mice who have proper hands instead of grasping paws.
The swarm leader class uses tiny creatures to spy, thieve, and kill. Swarm leaders are a varied bunch. You could be a forest gnome with cute wood-mouse allies, a drow wielding the favour of a spider goddess, a cultist commanding undead severed hands, a peasant with too many cats , or someone else who has tiny allies. Swarm leader species affinities provided are bat, cat, crawling claw, mouse, rat, raven, spider, and wat.
All of the new player character options have been designed mathematically to be balanced against canon races and classes.
The new monsters add to the kinds of tiny allies available to swarm masters supplementing those in the Monster Manual. The creatures could also be used to add variety to encounters for low level characters.
- from the publisher's blurb