Cam Banks
Adventurer
I wonder if it's going to have something to do with the notion of monster roles and unified charts to generate monsters. So, for example, if you know that a zoobo, being a 6th level skirmisher, generates stats of X, Y, and Z plus the traits of a zoobo, then you could take the stats for a 3rd level skirmisher and add those zoobo traits to make a less-powerful zoobo.
Cheers,
Cam
Cheers,
Cam