So I've noticed that a lot of high elo Ana players tend to play her more like a sniper, finding the high ground and staying far back behind her team to avoid enemy fire yet still healing her teammates. Problem for me is that I have a shitty laptop and it's hard to aim with 25 fps >.> so I end up staying just behind and pocket healing usually, using my scope only for teammates like pharah or getting off some damage behind a Reinhardt barrier. Is there an optimum way to play her? Or is what I'm doing okay? Every time I try to play the more sniper role I end up getting instaflanked and killed and I miss 90% of my shots :/ then again this is gold elo so take my words with a grain of salt.
Also to add, I sometimes have trouble deciding who to boost on my team, say we have a Reinhardt who has ultimate up but is providing a barrier for the team that is important for pushing / defending, vs a soldier who doesn't have ult. What do? I guess I just need more clear guidelines on when and who to boost.
I think what youre doing is fine. Playing her too far back away from your team can make you a much easier target for stuff like winston or a flanker. There are some areas where playing her further back is acceptable, but i dont think what youre doing is anything wrong.
Nano is very much something that comes down to your own judgment as an ana player, theres no exact rules of when to use it (though you should try to have a general idea of which ults youll be looking to use when you enter a team fight). I will say, though, that i wouldnt give nano to rein before hes already charged or used his ult. If he gets a nice pin but the entire enemy team starts swarming him, you can pop nano to both keep him alive and most likely win the team fight. If hes already used earthshatter, you can nano him to help confirm frags and make sure his ult was impactful. If you nano a rein when he's still far back without any clear targets to start swinging at, the opponents can just run away due to the removal of speed boost on nano so its not really effective anymore.
from my experience, these are ur nano targets
best: genji with ult, reaper (with or without ult), soldier 76 with ult, roadhog with ult, winston, and symmetra
ok: mccree with ult, pharah with ult, tracer, bastion with ult, dva, rein, zarya
dont nano: anything else
maybe you could nano molten core torb too i guess, his alt fire does a shitload of damage as it is so it would be even stronger. Havent tried it more than a couple times so idk.