Behold, the Rat Guard, a personal protection egeregore.
The intent is to provide protection from magical attacks or meddling, track it back to it’s source, chew up the attack, and swarm the initiator.
The imagery started with a need to protect from a specific curse based on a Rat King. Rat guard works as a rat King’s royal guard as well as a personal guardian. It draws upon the rat’s ability to travel dark hard to access places and it’s natural tendency to swarm. Swarms are perfect for overwhelming your opponent’s attention.
You folks know how to work with sigils and entities, I’m sure you can figure out some clever uses and implementations of the Rat Guard.