Torcher

Torchers are creatures in Pest Control that look like snakes with bat wings. They will actively attack the Void Knight using a long distance magical blast which they can launch over walls. However, if they are in the spaces right in front of one of the three gates, they cannot shoot over it, so keeping the gates closed will block those directly in front of it.

They also appear in both Quiet Before the Swarm and The Void Stares Back.