For the eventual Xin rework
Xin uses a spear, which is pretty cool, but in his current iteration the only thing that's notable about it is 175 ranged autos instead of 125 or 150. I shouldn't need to say that he's also extremely binary.
What if Xin's rework made him League's residential speardude by giving him some unique autoattack mechanic that allowed him to kite melee champs as a melee champ himself? Kind of like the Nobushi in For Honor, but with a success/fail system designed for League.