This guide got outdated, since I stopped playing Sona. Now here I am trying to update it to the best of my ability. Having not played Sona in the last few patches I'll get a lot of controversy for the build. and based on the comments and future plays with her I'll update it as time goes.

I put up the usually support runes here.
Greater Mark of Magic Penetration
Greater Seal of Scaling Mana Regeneration
Greater Glyph of Magic Resist
Greater Quintessence of Health

I like these ruins all around as support because they run Magic Pen when you might be using spells to attack, they have Mana Regen for the early that scales through late game. Magic resist in case you get targeted. and Fortitude for a little extra health in the early game.

coming soon.

I picked up Aria first, since as a support that would be your job, to keep the carry you are in lane with alive. I get Hymn second so if your carry is doing well and doesn't need much healing, you can help harass a bit. I picked up Celeriy by 4 as a safety measure in case you need to make a quick escape and that little speed boost will help. Pick up your Crescendo when ever available, Max Aria by level 9, Hymn by level 13.

Flash
Clairvoyance

I like these spells as a support since Flash runs as a quick escape if you are being focused and Clairvoyance will allow you to spot ganks and see where the enemy jungle might be at.

In short, this guide is really bad right now. In time I'll work on it when I start playing Sona again. I'll read comments when I can and reply when available. I'll make adjustments to this guide when I can based on in game experience and what people say in the comments.

Thanks to JhoiJhoi - prior to reading her guide I thought "BBCode, I'm not that smart" but now I know how and her guide is well worth the read. It's full of information and you should definitely check it out if you want to make a guide. Click here for her guide.