When Power Chord is active and I hit an unit (champion, turret, etc), I will deal extra damage and apply an effect based in my active aura (if it is a minion, neutral monster or champion).
Power Chord (Passive) (Innate): After casting 3 spells, Sona's next attack deals extra 8 + (10 × level) magic damage. This enhanced attack has an additional effect depending on which spell was cast last.
Does this also work on inhibitors?