• Read the "notes" near the items, abilities, masteries and "vs champs". I wrote some tips for you.
  
• Summoner Spells:
  - Flash Best. I think that there isn't need to explain why.
  - Exhaust Good. It forces enemy adc (or whoever you want) to flash or dash, and if he can't...
  - Ignite Good. It counter the Heal spell!
  
• Items:
  GUYS SERIOUSLY: BUY WARDS AT THE EARLY PHASE OF GAME! As support but also as mid, top and jungler! Them are seriously usefull!!! In this way no one can say anything to you and you will notice enemies movement in the map! ;)
  
• Skills upgrade:
  Just max Q at first and W at second, if you want you can change upgrade in this way in early:
  A good way to start having a level 2 Hymn of Valor at level 3. You will deal more damage but be carefull: you don't have your Song of Celerity for be elusive and run.

• Runes:
  Warning!!! I chose these runes as what i would buy for her if i had a page only for her. I normally use my AP general page for her.
  
• If you have cash to squander BUY DJ SONA. Really, she is f*cking cool to use, she has a big b...unch of music... no really: i noticed that if all the team are listen to you as DJ Sona they will fight with more aggressive, and you too, 'cause, except for ethereal, you will "charge" the team with some good music and play better then normally!
  
• In the "vs champs" part i put some of the champs you will find in normal and low-mid elo.

I'm a newbie of the site and THIS are mine first build guide! Comment and vote if you want and tell me if it isn't understandable enough or if it's just a kind of s*it xD
Hope will work for the beginners of one of the most usefull (and beautifull ;) ) champs in league of legends!