Gut Sona.
The mini-rework you did on this easy to play, braindead, and oppressive champion literally broke her. She was perfectl;y fine before she could get 85% CDR and spam her bullshit 300hp heals every 2 seconds, not to mention half-healthing ANY squishy with a q and her passive proc.
They always build full ap, not support. getting ridiculous sustain for their whole team, and braindead poke by pressing Q.
This champion is broken.
She's really better off building supporty anyway with stuff like Athene's and Ardent Censer.
Her base health is really low, and she has stupid low range.
Counter building the healing mid games pretty easy too.
No reason to gut her. Just a bronze circlejerk.