This is probably a reason why bosses usually have someone tougher than themselves out front as well as plenty of minions (at least that's what I would do). It never hurts to put a HERO'S CALL TEMPLATE on them as well. Usually I do like you do. I just bump up their wound threshold, especially if there is a combat-monkey in the party (trollslayer or anyone else with reckless cleave).

jh

Regardless of teh exact mechanics Im definately pro prolonging life of "bosses" in my experience its rate to see characters opt for anything fancy aside from smashing with teh biggest attack they got - its a shame there is so little reason to really use the fancy actions imposing conditions ... I guess part of the reason just is that most conditions just are more of a slight nuisance than really that has an impact so when the alternative is one (or two)-hit one-kill actions then its a lot of action cards we just dont see in use ....