Scale is used to determine how people of very wide power levels interact. It is possible that sufficient numbers can make a group operate higher than its normal level.
When applying scale to opposing forces or individuals, compare the sides' levels to determine who is higher and how many levels. They get one of the following benefits to any rolled actions against the lesser.
Mundane these are the vast majority of the population. The common people of the world. Although many of these people are uncommon and can even be considered well-known in the world. This is the level of the Player Characters. It also includes the weaker numerous outsider foot soldiers like sprites, brownies, and cobblers.
Supernatural are the largest number of people and creatures that exist outside of the mortal plane. These creatures naturally draw upon power or have sponsors that put them above the realm of normal people.
Legendary are those with influence over the course of not just Miranda, but lands beyond. These are Faerie Queens and dragons.
Godlike aside from the obvious, this category represents the gods, devils, and the most powerful individuals of the Shadow Realms.