[@Goldeagle1221]This game sounds fairly interesting but I wonder how you'll treat some of the "gameplayish" elements here.
Most of all how the "doubles armies" boon would be implemented? Sure it's magic so no question about the mechanics are asked.
What is more important that it creates sentient people out of nothing. Does it mean there's a slight population of ex-soldiers in countries with literally no childhood? (as they came into existence as battle ready soldiers on the field thanks to a boon)
Will the housing and social life of these people be problematic? Can they even adopt to peaceful life?
Alternativel reality is altered and these people retroactively receive a full ancestral family tree, social connections and everything so they can be all-natural people of your nation? This is of course another convoluted mess.

Or perhaps I am overthinking this and the extra soldiers are just people summoned by magic who'll disappear after the battle?
Either way it's good if we could know a bit more about this. I am all in for writing the social effect of these extra troops as a boon mixed with a curse but it's up to you as a GM to decide how this magic even works.