Syndra's Nerf in Upcoming Patch (6.23)
If Syndra really needs a nerf (which seems to be likely to happen in patch 6.23 on PBE), I would propose the following:
Q : Mana cost changed to 55/65/75/85/95 (up from 40/50/60/70/80) Q : New effect : Refunds 25 mana to Syndra on champion hit *Numbers subject to change
This would nerf Syndra's waveclear (thus nerfing her roam potential) while lowering the room for error in her ball setup pre-ultimate (thus ''nerfing'' her ultimate by upping the cost of preparing it) while rewarding good Syndra players that hit more than 60% of their Qs (and punishing for missing too many Qs/rewarding players who dodge her Qs)).
If not that, then something similar that has a compensatory buff to remove some frustrating gameplay while not making her overnerfed for another year again.