Dark Binding - Reduce Range
Considerably Morgana's Q (Dark Binding) is the strongest non-ultimate ability ingame with it's 3s root and relatively low cooldown. While it's more or less dodgeable without external effects it becomes a sure hit against slowed targets or people who want to ward a bush. This insanely long duration most often results in a kill. There is no other non-ultimate with this insane powerlevel - and saftey given the range.
In my eyes the maximum range should be reduced so this ability actually gets a risk for it's reward. Considering that Morgana already has black shield which protects her from enemy CC while planting hers, she should at least have to get into a fair amount of range.