Let's talk about sona
I would like an honest discussion here. I think she is VASTLY under the power curve of the game.
Her damage is only impressive at level 1 and after she picks up lich bane (an item designed to give a huge damage spike). This added to the trend of making champions more beefy, makes it so that she needs to get ahead in the early game to break even by the mid game. With her amazing one base damage spell, you can’t pressure enemies in lane by yourself. And your “combo” pre 6 can often mean blowing mana and spells prepping for a slightly above average 1-2 punch.
Her utility has horrible base numbers, medium to low level scaling (which is horrible because of the low base numbers), a HEAVY reliance of AP, and very high base mana costs at the lower levels. Meaning that you need to build a lot of mana regen and AP to get these skills up to par with other abilities. An issue no other support suffers under to this degree.
I would also like to touch on her health and movement speed. Both of these are VERY low base numbers, meaning that you are not only made of glass but expected to get around while walking through shin deep mud. These use to be to off set her high damage and relative safety due to the range of her aura’s. As it stands now, she has to be very close to the front lines to make her aura’s effect the team. Her damage output is also much lower unless you land your 1-2 punch, but even if you do your bonus damage via your passive does 60% less damage then it use to meaning that if you don’t kill you target, you will often lose a fight even if you had a large health advantage going in.
As she stands; she feels super slow, insanely mana hungry, lacking in any form of pre 6 team combo potential/stun, low semi ignorable damage output past level one but pre lich bane. She honestly feels like she needs to snowball early, just to run on even footing mid to late game.

the last slot would be for either extra green wards for extended skirmishes, pink wards if an objective was likely to be contested soon, or a situational item like
. Defensive items only if absolutely necessary. You are squishy, but I maintained a 5.55:1 KDA over 120 games and if someone on your team is able to actually hard carry, you have all the tools to let them do that. The problem is how infrequently you get matched with someone who has hard carry potential.
are in the same boat with it being hard and/or risky to use your abilities often, and not having as much of an impact when you do. (When played as support; some of them are also good solo laners, which helps a lot since you have so much more exp and gold.) While at the same time being, well, squishy.
is at least really safe because of her passive and long range.
are so popular.