The Gherr is a low-class Daemon native to the Nether Realm. It is roughly equivalent to a grey wolf in terms of size, durability, and strength, with the addition of a caustic bite.
It is also an example of what a Daemon Imp may turn into if given enough time. Much like its lesser predecessor, the Gherr is a violent and aggressive creature that instinctually aims to deliver as much physical and mental trauma as possible upon its prey before finally consuming it... preferably while it's still alive and screaming.

Gherrs cannot be reasoned with, nor can they be tamed.
When encountering one there are only two things a person can do: fight back, or do their best to run away.
The best option when fighting a Gherr is to aim for the inside of its mouth.