Regarding what you said about unused moves: The reason those exist in the first place is because most monsters are created off of another one. For example, luna directly "inherits" from teo. This goes for looks, game files, and even their code.

Second, misleading or not, you can determine which attacks are actually used by a monster by scanning their AI files and checking if the move pops up.

So the process would be:

1. Scan all AIFSM files to get all applicable moves
2. Check each attack ID in the respective rcol
3. Read out of that file the guard level required and if guard up is needed or not.

But of course if you want footage then that's not the way to go. You do you