I've been struggling with this too. I'm trying to make a selectable trait that allows your sovereign to begin with a spouse or a champion.
The problem is here:
- <Attribute>SummonUnit</Attribute>
And I don't know how to fix it! All I know is this just summons a basic unit (ie. peasant)... we need the champion or NPC code. I tried summonNPC and that didn't generate anything.
Lemme know if you figure this out, I'll post if I do. I'll be watching this thread.