1.) Let her heal instantly with either of these two options:
a.) Instant 70 hp heal
b.) Instant 35 hp heal and 35 heal over time
2.) Let her ult work on her chosen team mate as well as herself simultaneously.
3.) Slight reduction in sleep dart and grenade cooldown (Maybe…).
4.) Most importantly!!! Let her heal over time during reload animation.
i would give her two grenades similar to junkrat, with some adjustments on the cooldown, healing-per-second, damage-per-second etc
That can work as well but I feel as though people would complain about it.
I would balance the grenades in this way:
Ana will have 250 HP and she will have a passive regen outside of the combat similar to Mercy.
Grenades will not heal ANA but the two grenades will heal in AoE 5 meters all party-members.
Nano-boost can be used on ana and this will reset the biotic-grenade cooldown and increase ana healing potency for 50% during the duration
With something like this im sure she will be able to take a MAIN-HEALER role without problems
How about this.
1hp regen / second
It sounds small…but ponder it.
Here is how I would do it.