I noticed that we have a few magical animals as tags: dragons, basilisk, unicorns. There might be more, but these are the ones that I found in a quick search. Personally, I can't think of much need for them.
A big part of the point of tags is to attract experts on a subject to a question. I don't see how a person can be an expert on a mythical animal since their behavior and abilities can vary significantly across different works.
Furthermore, any single tag is supposed to be able to function as the only tag on a question, and I don't think these tags are capable of that.
So, is there something I missed? Are these tags useful?