[Omnirizon]

I think it's been implied above, but to be didactic...

if you have an assassin it is a very worthwhile to prophetize them. smiting assassins are better than sliced bread.

have this assassin enter the strongest bordering indie province and assassinate until there are no commanders left. then just invade the province with a scout or something and it's yours. this is slow but cheap. at the beginning of the game it is a way to capture the most difficult (i.e. expensive) provinces for free. you can have your actual armies focus on grabbing easier provinces, use this assassin to grab the hard ones.