Destruction Madra does seem like it'd imply Creation Madra is a possible thing. Though it'd probably be pretty rare in the wild? Maybe you'd find creation aura around an artist's workshop or at the site of a birth or something. Hm. Maybe a freshly erected building to contrast destruction appearing around a smashed one?
One thing that I've got a stack of notes on but hasn't appeared in-quest yet is that there isn't always an
exact opposite to things. Fire and water or light and dark are usually given as opposites, but I can think of some lenses to contrast other things: water and earth as opposites in the sense of them intermingling to cover the surface of the world, perhaps. Destruction implying Creation is something I'd thought of, but it feels like it should've gotten mention in canon if it were real, given (book 9+ spoilers)
Lindon starts associating his Void Icon with "creation ex nihilo". Obviously he wasn't about to add a third path, but it feels like "this would be a grand revelation to a Creation-aspected sacred artist" or something similar should've appeared.
Your point further on about the different facets is very important to how I'm envisioning Keras' world, though.
It's useful to assume that there's maybe a couple dozen basic types of madra, which can have various sub-associations. The opposite of destruction madra, if you were trying to balance it out in terms of various natural treasures, might be dream (creating its concept instead of destroying its nature), earth (the endless bulwark of the planet as contrasted to things wearing away at it), life (bringing new things into being as opposed to wiping them out), or water (endless tides and flows bringing change as opposed to things crumbling where they stand).
You can probably think of a few others.
I don't intend to introduce more than a handful at most of new madra types, but new associations and themes from exploring something different about them or from what comes of having more than one type of madra to suggest something different? That's a fun place to explore and to create characters for: What would a dream/water path be like? Light/cloud/poison? Force/life/shadow? Blood/earth/lightning?
Pure Madra is a combination of Life, Blood and Dream madra that only humans have.
Ah... I'm afraid that that's not quite right. The thing that makes madra
pure isn't that it's combining a body's natural aura of these types. The way the books stress it is that pure madra is what you get when you take everything else
away or when you start with nothing at all, not leave a few human things mixed in to the right degree. It's just a blank human spirit, hence why almost everyone stops having pure madra early on in their life.
I didn't really stress it for this quest because none of the paths I'd designed for the protagonist were pure and I haven't had a strong concept for a pure madra path character to show up yet.
The fact that it's not made up of anything at all except "a human spirit" is why it has the benefits that it does have, which canon goes in depth on.
I suppose a Cradle version of that would be a very flexible madra that's well suited to adjusting techniques from a wide variety of paths in order to run off of Creation madra?
EDIT: Or it's just soul fire.
I have some theories that this is very close to how a lot of Arelius paths work. Tiberian Arelius' path is noted for being a water/wind/lightning path where he could adjust his mixture on the fly to bring forth one element more prominently.
If and when we meet some Arelius characters who aren't straight from canon, they will almost certainly have some tricks that lean into the sort of things I think you're thinking about. Things inspired by their Monarch's style and famous accomplishments I figure are often common in those close to a Monarch.
I'm very curious about if there is anyone else who's gone down the Life and Death Artist Path because it is a very interesting concept to explore. I'm hoping that
VagueZ will either include one that Keras can meet or Keras will be able to acess some records about such a path because it would be useful for Keras's growth and interesting to see.
I'm not sure if and when we'll see more of this. It's part of the nebulous set of things that could show up after this arc, depending on how things shake out and as I firm up plans. The main source of information that Keras is currently aware of would be sources discussing the Bloody Lords, the Underlords who rose out of the Bronze Serpents to challenge the Seishen King in the First Pacification.
The Bloody Lords are such an acceptable social target as Universally Bad that they could be safely included in a children's storybook, though, so that's not a nice subject to look into.