Master Yi
Heres what I think would actually make Yi interesting. Make his q a skillshot that bounces based on the angle you hit them. After hitting a target(s) reactivate it to appear at his chosen target for an empowered auto. With devour and his double strike he procs on hits like mad but there really is no skill involved you just need to attack as fast as possible. Ide like to see it changed to something along the lines of a moving auto attack. Say he autos you then moves 100 distance, during that time he would strike one time. Itd take away the 2 aspects that everyone hates the most about yi. His invulnerable q and the devourer double strike true damage. Atleast that's what I think people hate the most.