Hello! and Wellcome too Samsam's build.
sona is one of best supporters in game.u need too read this tip before star :

Tip : Sona is suporter so u need too stay in safe area

.....

Well mana regen is best state for start with sona because u can spam using spell's in early game.

remmeber too get ur Aria of Perseverance ur supporter take care:)

Crescendo = low dmg but amazing stun for ur team too start fight,

Power Chord
Power Chord (Innate): After casting 3 spells, Sona's next attack deals extra 14 + (9 x level) magic damage.

Additionally, Sona's auras persist for 2 seconds after deactivating and set off a 2 second global cooldown. Power Chord has an additional effect depending on which spell was cast last.


hymn of valor : (Power Chord) - Staccato: If this spell was last cast when Sona's Power Chord is ready, her next attack will do double the damage of her Power Chord.

Aria of Perseverance : (Power Chord) - Diminuendo: If this spell was last cast when Sona's Power Chord is ready, her next attack will de-buff the target to deal 20% less damage for 4 seconds.

Song of Celerity : (Power Chord) - Tempo: If this spell was last cast when Sona's Power Chord is ready, her next attack will slow the target by 40% for 2 seconds.