Master yi ult idea
Before I give the details on the ult I came up with for yi, why do I think he needs a new ult? Simply put, his ult is very outdated and boring. There is skill to play master yi I agree but if I had to compare skill on master yi I would probably compare him to pre rework kat. What skill he does have is pretty internalized, it's hard to see and hard to really play around for the enemy. Like the kat rework achieved, I want skill on yi to be more seeable and respectable to make it for satisfying for the person playing yi and less frustrating for the person vsing yi.
So here's my ult suggestion for yi. Highlander: upon activation master yi gains bonus attack speed and movement speed (same values as now) for 10 seconds flat, no longer gains bonus duration upon killing enemies.
While Highlander is activated, yi is allowed to cast his ult again, allowing him to dash very quickly to an area, stopping behind the first enemy hit and damaging them. If an enemy is killed with yi's alternate ult cast, it is refreshed immediately, allowing yi to cast it again until his ult times out.
I don't have any of the values worked out since it would be hard to come up with something balanced without any way to test it, but this is the idea. Yi has a limited time to reset and clean up kills, using his dash to finish them off. Actually getting the reset has a condition attached to it, and he has a limited amount of time to get these resets. This means there is more space to enhance his feel as a fast swordsman, using skillful dashes that reset to clean up kills.
Thoughts?