Sorry, I disagree nade is too much-
It does far too much!!! Additionally there’s no true counters except Zarya’s bubble, and it’s single target (Not including self cleanse heroes).
I’ve been asking for a nerf on that for like 2 years even before the support roster took a hit. The fact it can do as much as it does, with a short cd, with a 4 meter radius disgusts me.
Flat out- overpowered ability. Also it’s like lemon juice in my eye when I see supports like baptiste get his hands chopped off for healing but nade remained untouched.
Like hello!?
It burst heals, amps healing, negates healing, and does damage. 4 things. This ability can easily change the tide of a team fight and even ultimates.
Just read EVERYTHING this does- and keep saying “this fair… this balanced”
Ugh. 
I don’t care about anything else just that one ability. Secondly I think reduced the radius by a meter and increasing the cd is a healthy step.