Healing bonus nodes are expensive and the stat in general feels worthless. Maybe it just needs it’s numbers buffed, but I’m not sure I’d still be interested in it even if they were doubled.
Maybe make the stat “Healing gets a bonus is 10% bonus and being healed gets a 20% bonus”, that way it’s interesting for healing heroes.
Or maybe scrap the healing nodes and make them “minions gained for this hero get a 5% HP boost”, or something unique like, “Troops assigned to this hero gain 1 level while being used”