Sona's basic abilities use the stance mechanic. In addition to their activation effects, her basic abilities each grant a unique and persistent aura until she activates a different basic ability to change stance. The previous aura persists for 1 more second after Sona enters a different stance. Changing stances sets off a 0.5 second global cooldown on Sona's basic abilities.
After 3 ability casts, Sona's next basic attack will deal
13 / 20 / 27 / 35 / 43 / 52 / 62 / 72 / 82 / 92 / 102 / 112 / 122 / 132 / 147 / 162 / 177 / 192 bonus magic damage, with an additional effect depending on the last basic ability cast.
Hymn of Valor
Cost: 45 / 50 / 55 / 60 / 65 mana
Activation: Sona sends out bolts of sound that deal magic damage to the two nearest enemy units within range, prioritizing champions.