Now mod is working.

I don't like giving the lords many lore of magic. Consider the example of Mazdamundi.
You have the following choice of vortex spells: Flame Storm, Chain Lightninig, Purple Sun of Xsereus and Banishment (you can also remember Gehenna's Golden Hounds). The problem is that you don't want to use any of these spells, since there are other, better (IMHO) attacking spells in the game: The Dwellers Below and Pite of Shades. And if you want to use a vortex, then in almost 100% of cases it will be Chain Lightninig.
And so with all spells, there will always be the strongest in its category. Therefore, such a huge selection begins to look more like a store. The choice seems to be huge, but you only buy something specific, and not the entire range.

There is another problem. Good spells are found in different lore of magic (which is logical and balanced), because of this it is necessary to constantly look for the right lore and spell (to do a lot of useless mouse clicks). The player is not a great magician who can take the necessary spell out of his head right now) Therefore, I consider 4 schools of magic to be the most convenient number (IMHO).
And more. If I immediately add 9 magic schools (basic + Tzeenztch), then the player will have no desire to receive "fragments". Then the UNIQUE MECHANICS (emphasize) will be perceived as "well, OK, a couple more lore that I may use." And I'm not a CA developer, I don't like when unique mechanics are perceived as something banal.

pretty sure that covers basically all the full lores of magic in the game (i've heard that mixing runic magic with winds magic breaks stuff so I didn't include it) besides Nurgle and Slannesh

it'd give it more of a feel of him being a master mage with all the basics (the standard 8) down by default but able to use the tools of his enemies against them.

obviously though this'd be much more powerful than this version.

honestly my only suggestion (and this'd just be personal preference) would be to instead give him the basic 8 by default and have each fragment correlate to the lores of at least 1 race
1 for little and big WAAAGH
1 for Vampire and Deep
1 for Ying and Yang
1 for Ice and Tempest
1 for High and Dark
1 for Ruin, Plague and Stealth (admittedly considering how good Ruin and Plague are this might be a bit too powerful, especially when you then also add on the (admittedly sub-par in comparison) Stealth... eh. Thanquol should get Ruin and Plague (possibly Stealth too, he certainly knows Skitterleap) anyway, what's the harm in putting them on Kairos?)
1 for Wilds (not sure what to pair that up with)
1 for Nehekhara (not sure what to pair it up with)

That's right, it's a unique mechanic, and I really like it. But now Kairos has a very wide choice of lore of magic.

really love what you've done with the fragments here. wish you could have all those lores at once but I can understand not wanting to take away from his mechanics like that