After casting 3 spells, Sona's next attack deals bonus magic damage in addition to a bonus effect depending on what song Sona last activated.
Q - Hymn of Valor
Sona plays the Hymn of Valor, sends out bolts of sound, dealing magic damage to two nearby enemies, prioritizing champions and monsters. Sona gains a temporary aura that grants allies tagged by the zone bonus damage on their next attack against enemies.
W - Aria of Perseverance
Sona plays the Aria of Perseverance, sending out protective melodies, healing Sona and a nearby wounded ally. Sona gains a temporary aura that grants allies tagged by the zone a temporary shield.
E - Song of Celerity
Sona plays the Song of Celerity, granting nearby allies bonus Movement Speed. Sona gains a temporary aura that grants allied champions tagged by the zone bonus Movement Speed on their next attack.
R - Crescendo
Sona plays her ultimate chord, stunning enemy champions and forcing them to dance and dealing magic damage to them. Each rank reduces the base cooldown of Sona's basic abilities.