Can Sona at least gain back half of her %missing health ratio on W?
Imo Sona could use a mini-rework, as she still has some glaring problems regarding champion interaction and kit flow, but I understand that a lot more champions are on higher priority and really need help (Warwick, Poppy, Taric, Yorick, etc.). Something that would greatly help her out for now, however, would be to return the %missing health scaling on her W.
The whole point of the rework was to make her abilities have impact instead of just stance dancing for stats, yet I feel her W isn't as potent as is should be for protecting your carries especially in the late game.
If you can't return it to her heal, what if you put it on her shield instead? Have her shield strength increase by 1% for every 2% missing.
I have lots of ideas that would help her both game-health and balance-wise, but for right now I just recommend this.