[Agrajag]

Enderopez, if you want to add affliction modding, why not also add a "random affliction" tag for units so that they will start with a random affliction(s) like BE Ermor's.
Possibly:
#randomaffliction <chance%>
which would give that unit a <chance%>% of starting with a random affliction.
As for new ideas:

#intrinsicspell <name>
Would allow that commander to cast the spell <name>, even without the required paths and research.
This would be good for... For example, a devilish commander, which can cast Firebolts but doesn't actually know any Fire magic. Or more like a dragon's firebreath, only its a spell instead.

#freecast <name> <number>
Will allow a commander to cast the spell <name> for <number> amount of times each combat, completely for free (no fatigue cost and no action cost).

Also, I didn't see anyone mention the idea of having control over freespawns, like Ermor's
#freespawn <name> <chance> <requierment>
Will give this nation a <chance>% of summoning unit <name> for free, in provinces with <requierment>.
The requierment will be:
0) Nothing
1) Lab
2) Castle
3) Lab+Castle
4) Dominion (which means that <chance> is multiplied by the province's dominion score, so higher dominion will yield more summons)
5) Lab+Dominion
6) Castle+Dominion
7) Lab+Castle+Dominion