Heroes 6 - Discussion

I think that if you kill a hero, they shouldn't reappear in the tavern until at least a month has passed. And the higher the hero's level, the longer they shouldn't be available.

Maybe I'm not understanding, but what's the point of waiting? Well, I captured an enemy hero, so why, as I suggested, can't I buy them back on the same day, but for an amount corresponding to their level? Maybe I really need them.