I think that's a fun idea but how useful would a healer be, really? We rarely have trouble with the strikes, our health and shield self regens as long as you can stay out of the fight for 3 seconds, raids are done in a 6 man team and if each member is at least a decent player, there will be very few deaths, which you can be revived out of. And speaking of which, deaths do not really punish you in this game, save for the nightfall and raid, to a certain extent. Just to clarify im not against your idea, i think its great to have a support-focused subclass, but just questioning the utility of it.