A new hero has just hit the Overwatch PTR.
Baptiste is a hybrid support hero who has some DPS elements but is mainly healing orientated.
I have played him briefly in PTR and he feels like a off-healer to me, I am uncertain if he would have enough output to carry the healing solo.
Out of all of his abilities the Immortality Field looks the most powerful, creating a temporary shield that stops other players from dying. This is done not allowing health go under 20%. I suspect this had been introduced to stop the Junk Rat or Pharah team kills
Will provide another update once he goes live and a better sense of team dynamics comes into play.
For a full breakdown of his abilities see the Polygon.com article below: