Talk:Sona/@comment-8008166-20140804141813/@comment-6061721-20140806025638

Pretty sure it's a visual bug. You can only use the attack buff once, but the visual buff doesn't disappear if they're still in your aura.

And yes, the aura does affect Sona, in the same way as it affects other champions. And yes, the power chord and aura damages stack. (It's why they changed the Q power chord from double damage to 1.5x more damage in her rework.)