With the recent update to Blessing (it now only heals within Affinity Sharing Range) you do have to stay cklose to your allies, so it all depends on how your allies play. If they are a distance player, you should be too. If they are a melee player, something like Broken Scepter would work well (Restore energy and health from enemy corpses if you have downtime), etc. If you're accurate with it, the Hema might be good for health restore and things. But ain't nobody got research fo that.