True, buts it's not a formal "Healer", and the ring that im proposing would have the benefit of shooting out of it, of course your more vulnerable but health would regenerate.

It gives you health man it's a healer. Your class idea is represented already and nobody wants to nightfall with a healer that you're describing, the projectiles would just -blam!- you.

Think of it this way. You pop your head out for about five seconds and those seeking bullets come out and immediately knock out your shields. The Melee from the generous healer standing right next to you, would heal you right back up, good as new. The super would allow you to step out while still taking those bullets and regenerate your shields fast enough to keep going. The added bonus though is that you can still shoot. The drawbacks for balancing are however is that you must stay in the radius of the warlock and it offers less full on protection like from rockets and things like a Giant Arlin priest smash, HOWEVER the ability would am modestly just dissipate away if hit like a ward of dawn. Think I'm it. :)