I would like to learn the "Support" role, as its the only one left I still haven't learned completely. I played maybe 2-3 games as support and that's pretty much it.
Recently picked up 
,
Any tips what to build?
How to play her, and how to play support just in general?
Thanks in advance!
Full AP Sona is overkill noobtrap (and I mean, bad for starters). Go off-tank with one utility item and you should be good to go.
Items that helps you live longer: 
etc
Items that lets you cast more things: 
Never skip or build vision too late. Does not have to be first rush, but should be built ASAP.
Start with these 
Then in this order 
>
/ 
> 
OR 
FQC if you won't have inventory issues, Eye of Watchers if you do.
Focus more on heals, shields, buffs, and everything other than damage.
Try not to 1v1 because most likely you're not gonna win.
Stay in the backlines (this applies to MOST ranged supports like Sona).
For Sona, use spells only when you need them. There's no point in blindly spamming spells if they're not gonna be used.
Pick the most fed teammate to work with and give buffs/peel for them. Does not have to be your ADC.
Don't roam DURING LANING unless you know what you will gain and lose, and not at your teammates' expenses. Sona isn't the best roamer, though you can always get more points in her E.
Sona is actually not an at all bad "starter support" because she has lots of room for mistakes: you don't have to know how to land much skillshots and that missing them is not the end of the world (other than her ult which is instant and is rather huge) and that you can mistime your spells and not get punished as harshly for it. If anyone is telling you she isn't a good starter otherwise, then they don't know the super harsh consequences for mislanding and mistiming basic abilities on most other supports.
Good luck, I'll answer questions if you have more.
I honestly don't think Sona is the best starter support, mainly because if anyone breathes on you you'll explode instantly and become the star in someone's porno fantasy. Makes protecting your carry a thousand times harder when you're just as squishy as they are. I'd point you towards tankier supports to start with (Braum isn't as niche as people think), but then I'm a tank support fanboy and main :P
Regardless, biggest tip is to never underestimate the power of auto attacks in lane on a ranged support. Auto attack someone for harass, then as soon as the minions aggro to you quickly dip into the brush then step back out. Instantly the aggro drops, and it lets you get off lots of poke whilst conserving mana.
In general when playing ranged/squishy supports try staying BEHIND your ADC.
If youre a melee support stay IN FRONT.
So as Sona, always try to stay behind your adc, and if enemies get close Q them. A mistake novice sona's make is focus on doing damage with Q but going in front and out of position.
Sona is really squishy, lowest hp in the game. Be extremeley safe.
Other than that just have fun. Build AP or lich bane or just recommended items. add me if your on NA, we'll play a few games. Shes fun.
First of all, understand that support requires a completely different mindset that any other role in the game. Jungle is the closest, but even there you'll see some drastic differences. You want to feed your team every advantage possible, and this often comes at the cost of sacrificing things you would normally hoard in any other position. Your goal is not to "hard carry" a game, but to create situations for your team that will lead to a win. That sounds like the same thing, but it really isn't.
There are four sub-roles for support: tank, peel, harass, and sustain. All supports are usually some combination of these, and often the roles you most need to play will vary as the game plays out. For instance, a Nautilus support will at first be a hard initiator-tank, but may very well be needed more for peel later. Obviously some excel at a particular role more than the other roles and will carry that specialty throughout the game (hello Soraka), but the idea is to remember that very likely at some point through the game you may have to do all of these, regardless of your choice of champion. I tanked a tower dive last night as Nami, for example, where we got a double kill.
Specifically for Sona, things are a bit different than you'll see from some other supports. She is a powerful harass-style support with some decent sustain as well. Her weakest role is tank for obvious reasons, but her peel is relatively weak as well. She is a fairly safe pick and good in a composition with high burst and at least one decent frontliner. I also like to take her when I have more than one auto attack based teammate, because Ardent Censer's strength is multiplied when you apply it's buff to auto-attackers (and I ALWAYS buy censer on Sona, mostly because it helps shred neutral objectives faster where everyone is auto-attacking anyway).
If your team is relying solely on your ult for initiation, then your team has drafted poorly. In an older age where supports were basically just throwaways anyway this was fine, but today the auras and buffs Sona provides in an extended fight are very powerful... meaning it's much better for Sona to backline and peel/follow-up with her R rather than to dive and ult as she would normally do in lane.
As an additional note for support in general, don't necessarily feel tied entirely to your lane partner. You can roam and help other lanes just as if you were any other role, and in some cases I find it more beneficial to assist mid or the jungle for a few minutes to build/extend an advantage there.
should be your core damage item in mid game. Try to maximise the damage on your Q burst (that is, Q spell poke, empowered basic attack, passive empowered basic attack, lighbane, thunderlords) as that combo has insanely high AP scaling. You should set up your spells to run in, hit the poke burst, and speed out. Cast some spells to set up again, and start over.
Small tip when you start: Q in fountain, once more during leash, then you get your passive on the first poke in lane.
I made a supporting basics video. Its perfect for someone like you who has played a few matches as support and is is interested in learning more.
Some people have said it could be more exciting, entertaining, but that the information was all very good and informative. In other words its not perfect but it gets the job done.
Remember its just basics, ideas to build upon, a direction to start from.
https://www.youtube.com/watch?v=qotKTLKEfXE
If you bother to watch it Id love to hear your opinions on it.
