i think you should be able to heal it, yes

think of it as a stationary player that you must keep alive (or kill depending on your mission). it cannot strike back or defend itself.

i think it'd be cool if you could make it so the die-res-advance thing was restricted to no more then a certain distance from the target. this way you could put one in a castle (like the castle just south east of razorhill), defend it, and the attackers would have to legitimately kill all the way to the target