Ashe
Disclaimer: changes have no numbers associated with them just gameplay.
So, I will be starting with
so I can go alphabetically.
What to Keep:
P-Frost Shot and Ultimate-Enchanted Crystal Arrow as they make her really have the agency of a slow machine and her ultimate being so iconic.
What to Change:
Change the order of Q and W making it so Q becomes Volley and W Ranger's Focus.
Q-Volley: Lower the amount of arrows to 7 so that i doesn't go past the creeps as a form of harass but make them more impactful by adding damage and/or slowness. By also significantly raising the cooldown, it stops being spammable and also gives the player more decision making.
W-Ranger's Focus: Keep it as is.
E-Hawkshot: By far her more underwhelming ability, it makes sense that needs the most help. I would lower its range and bring it down to a single charge while also lowering the cooldown. The trick would be that now when the bird explodes, it leaves a snow trail for certain amount of time around that spot which applies Frost to any enemies hit or that walk by it. If Ashe attack a champion hit by the snow, she gets access to her Ranger's Focus right away. This would make it so apart from a scouting ability, it could be used in teamfights as a form of controlling the battlefield and giver her access to AoE damage.