Since Mercenary Clan topic came up, one thing I noticed when using them in your own kingdom.
I am sure there are lot more to them that I am not aware of.
Initial cost were pretty large, up to 3,4,5K in some cases, for just hiring 1 Merc. Clan during few weeks.
Overtime, the Merc. cost went down to reasonable, under few to several hundreds.
So I have hired additional 1 clan, to subdue more on other Kingdom.
To my surprise the cost didn't went up that much at all, it was about the same.
So I decided to hire one more. That's total of 3 clans, the cost stayed the same as 1 or 2 clan.
I figure they are getting paid by how much of enemy they destroy or raid, etc.
So, I am thinking about hiring as much of them as I can on startup of next Kingdom.