New Mod: Rejuvenate (update to v1.0)

[rrongol]

DrPraetorious:

Thanks for the tip on #fatiguecost. I see it in the manual now. So this sets the gem cost for ritual spells too? For some reason I was expecting a #gemcost tag.

I started out by changing the startage or maxage for some units. Adding new spells sounded like an interesting thing to try next. Dominions is fun to mod.