So fearing a Yi during ult...
I was playing fiddle (because he's quite fun) when I was ulted on by a Yi. I Qed him, fearing him away. Normally, a fear slows, so it's like a slowly moving stun away from the caster. Well, Yi is invulnerable to slows during ult, so when I feared him, he ran away at the speed of sound. It was absolutely hilarious. I wonder if you could do something like:
Max fear duration (whatever champion has the longest fear) + Yi Ultee + all movement items + ghost + youmuu's + full deadman's stacks +speed shrine + zilean, Karma, and any other speedups I can't name to get the farthest fear.
It's kinda funny, though. It's almost a yi nerf, that he moves so far away. It basically cancels his ult by the time he runs back.