I might be nitpicking, and I might be wrong too.

I was uncertain so I even looked on the internet a bit. The crest is called an "Exorciser Crest" instead of Exorcist?

The internet seems to be uncertain about whether they're both words (google results were mixed, and there's no mention on wikipedia - though we know how accurate it can be sometimes...) so I'm more confused now than when I first saw it and went " "Exorciser?" is that a word?"