Its a long cooldown and what it does doesn’t justify its cooldown time.
It rezzes a single person that is dying. It also has a cast time. If the person is under attack a normal rez would work better since you keep their health from going down that way.
To justify it’s time I have a couple of suggestions.
Make in instant cast.
Make it bring a person to life that is already dead.
Make it effect more than one person.
Make the person that’s being rezzed immune to damage during the duration of the cast time.
Any of those would make it better. All of those would give me happies.