Caitlyn
What to Keep: I actually think Caitlyn is in a good spot, ability wise, and with my proposed change of bringing down her extra range; I think she would need little no zero change.
What to Change: I would change W- Yordle Snap Trap to have significantly higher cooldown but have a harder root. This would make so it is not as spammable but if you manage to trap someone you are able to punish them. Maybe for balance sake it would be good to put a quality of life debuff where if the enemy has been CC'd in the last second, the root time goes down; making it so chain CC is not as oppressive.