What Makes a Good Familiar?

A good familiar would be one who has some ability to comprehend human needs, is able to follow directions without perverting the direction or the instruction. It's not going to go and perform some tasks that you ask it to do and perform the tasks in the most chaotic or destructive way possible. The Gromars aren't really thinking about like, oh, well, you could be asking all these different types of spirits. They're just kind of looking at, hey, you've got a demon and we're looking in sort of adversist context for working with demons.