How does Spirit Guide work?

[popejubal]

I like playing Sidar and I've gotten a few units with Spirit Guide through exploration. When I turn them into Shades and settle the Shade as a Great Person, I don't get an XP contribution in my other units.

How is Spirit Guide supposed to work, anyway? And how much of the XP does it grant and to whom?

 

[Annex]

I think the unit with the promotion has to be killed. Then the experience that unit has will be given to another of your nearby units.

 

[xienwolf]

A random unit that belongs to you (distance from dead unit doesn't matter) gains 50% of the XP that the unit who dies had. Can't remember if the death has to happen during combat, or just any death at all, pretty sure it has to be a combat related death though.

 

[Nikis-Knight]

Last time I checked it worked with arena deaths as well. You can do that with Elohim taking a Balseraph city and building a reliquary elsewhere.