Do not let monsters attack with non-physical attack moves

[NatalieLockhart]

Right now, the way the files are parsed makes it so that monsters will attempt to attack with moves such as "Charm" or "Legendary." Spellcasting isn't implemented yet so any magic won't work, and things like "Legendary" are just attributes that describe monster abilities. A monster attacking with stuff like this doesn't break the application, but it doesn't do damage and is just a wasted move.

Let's try to make it so that monsters will only try to attack with physical attacks right now, as those are currently functional.