Background: Sona has no memory of her true parents. As an infant, she was found abandoned on the doorstep of an Ionian adoption house, nestled atop an ancient instrument in an exquisite case of unknown origins. She was an unusually well-behaved child, always quiet and content. Her caretakers were sure she would find a home quickly, but it soon became apparent that what they mistook for uncommon geniality was actually an inability to speak or to produce any sound whatsoever. Sona remained at the adoption house until her teens, watching in hopeless silence as prospective adopters passed her by. During this time, the caretakers sold her unusual instrument to anxious collectors, hoping to build her a trust. For a myriad of bizarre and unexpected reasons, however, it would be returned, or simply appear again outside the house.
When a wealthy Demacian woman named Lestara Buvelle learned of the instrument, she immediately embarked to Ionia. When the caretakers showcased the instrument for her, she rose wordlessly and explored the house, stopping outside Sona’s room. Without hesitation, Lestara adopted her and left a generous donation for the instrument. With Lestara’s guidance, Sona discovered a deep connection with the instrument which Lestara called an "etwahl". In her hands, it played tones which stilled or quivered the hearts of those around her. Within months, she was headlining with the mysterious etwahl for sold-out audiences. She played as though plucking heartstrings, effortlessly manipulating the emotions of her listeners - all without a single written note. In secret, she discovered a potent and deadly use for her etwahl, using its vibrations to slice objects from a distance. She honed this discipline in private, mastering her gift. When she felt prepared, she went to the only place which could offer her a fitting recital: the League of Legends.
Abilities:
Power Chord(passive): After casting 3 spells, Sona's next attack deals extra 24 (+12 per level) magic damage. Additionally, Sona's Auras persist for 3 seconds after deactivating and set off a 2 second global cooldown.
Hymn of Valor: (Stance) - Passive Aura: Sona plays the Hymn of Valor, granting nearby allied champions bonus attack damage and ability power.
Activation: Sona sends out bolts of sound, dealing magic damage to the nearest two enemy champions or monsters.
Cooldown: 7 seconds
Area of Effect: 700
Cost: 55 / 60 / 65 / 70 / 75 Mana
Attack Damage & Ability Power: 8 / 11 / 13 / 17 / 20
Magic Damage: 70 / 120 / 170 / 220 / 270 (+0.6 per ability power)

Aria of Perseverance: (Stance) - Passive Aura: Sona plays the Aria of Perseverance, granting nearby allied champions bonus armor and magic resistance.
Activation: Sona sends out healing melodies, healing herself and a nearby wounded ally.
Cooldown: 7 seconds
Area of Effect: 900
Cost: 55 / 60 / 65 / 70 / 75 Mana
Armor & Magic Resist: 8 / 11 / 13 / 17 / 20
Heal: 40 / 65 / 90 / 115 / 140 (+0.5 per ability power)

Song of Celerity: (Stance) - Passive Aura: Sona plays the Song of Celerity, granting nearby allied champions bonus movement speed
Activation: Sona energizes nearby allies with an additional burst of speed for 1.5 seconds.
Cooldown: 7 seconds
Area of Effect: 850
Cost: 55 / 60 / 65 / 70 / 75 Mana
Movement Speed: 8 / 11 / 14 / 17 / 20
Extra Movement Speed: 8 / 11 / 13 / 17 / 20 %

Crescendo: (Ultimate) Sona plays her ultimate chord, forcing enemy champions to dance and take magic damage over 1.5 seconds.
Cooldown: 160 / 140 / 120 seconds
Cost: 100 / 150 / 200 Mana
Magic Damage: 150 / 250 / 350 (+0.7 per ability power)
[left]Items:
1) [img]https://leaguecraf*****m/images/icons/items/item_8.jpg[/img] Doran's Ring: Gives Health, Mp5, and AP, which will help you stay in the lane longer than usual.
2)[img]https://leaguecraf*****m/images/icons/items/item_6.jpg[/img] Tears of the Goddess: This Item will help you get more mana and you'll be good when you upgrade it.
3)[img]https://leaguecraf*****m/images/icons/items/item_25.jpg[/img] Boots of Speed: Get some movement on the relatively slow sona.
4)[img]https://leaguecraf*****m/images/icons/items/item_43.jpg[/img] Blasting Wand: That +40 AP doesn't hurt to your healing and damage 
5)[img]https://leaguecraf*****m/images/icons/items/item_5.jpg[/img]Archangels Staff: Combine your Tears of the Goddess and Blasting Wand to get the Archangels Staff, which does basically the same thing as both but 3% of of your mana is also added to you AP which is nice.
6)[img]https://leaguecraf*****m/images/icons/items/item_70.jpg[/img] Convert your boots of speed to Mercury Threads giving you some magic resist.
7)[img]https://leaguecraf*****m/images/icons/items/item_91.jpg[/img] Deathfire Grasp: This is nice as it give you +AP and Mp5, reduces ability cooldowns, but also gives you a Nuke, which along you hymn is devastating.
8) [img]https://leaguecraf*****m/images/icons/items/item_88.jpg[/img] Lich's Bane: This along with your passive will cause devasting damage that your opponent will be baffled as to how you put out that much damage
9) [img] https://leaguecraf*****m/images/icons/items/item_18.jpg[/img] Zhonya's Ring: If the game goes on long enough this will help you get that extra AP that you'll need to end it.
Masteries & Summoner Abilities
Masteries: For your Masteries you'll want to go with the standard 9/0/21, that way you can get the most out of Sona.
SA: The summoner abilities are as follows for Sona.
1)[img]https://leaguecraf*****m/images/icons/spells/spell_213.jpg[/img] Clairvoyance: This is helpful for sona to be more map aware, it also is helpful early game, as it tells you who's going to be laning with you.
2)[IMG]https://leaguecraf*****m/images/icons/spells/spell_214.jpg[/img] Flash: Since you are a squishy, and believe when I tell you, you are a squishy, you'll need to get out of those sticky situations with flash, but also keep in mind that during team battles you'll want to stay in the back of the pack to use sona to her full potential.
Notes:Sona's Passive Power Chord Power Chord is very strong if leveled up quickly. While she is suited to fight against multiple champions at a time, she however does not survive a lot. Consider your possibilities before each game.
Sona can be played as a DPS, Ability Power or Support Champion. Each Type of build is a unique gamestyle in itself and requires to test the builds beforehand.
Her Passive enables damaging enemies with auto attacks and focusing, while her abilities remain certainly usable for each situation. It requires however the most experience to master.
The AP ratios for her abilities are strong and her low cooldowns enable perfect usage of her auras quickly while dealing good damage and enabling quick aura switching.
Though Sona excels at pushing in group play, sustained aura rotation depletes her mana pool quickly. Taking blue buff is ideal for truly making her presence felt.