Mercenary Blocking Suggestion

Now the intent behind "exiling" Mercenaries is to give players agency in which mercs we encounter, but it doesn't feel very impactful with barely increased odds, especially for having to give up your rewards for.

I suggest instead of, or in addition to "exile", giving us a favoribility option.
For example: "blood bond: You make a pact with this mercenary, giving you greatly increased chances of meeting this type of mercenary again."