I just figured out something really cool you can do with Nocturne.
The video's gonna be uploaded sometime tomorrow, but the description of it is basically:
Enemy tf tries to escape with his ult, I ult, and ult onto him right as he teleports. I follow him across the map far longer than my ult range would allow, and I merk him as he realizes the Nocturne rapetrain is coming for his ass
It was hilarious, I was flying across the screen so fast
It looked like a faster version of spirit breaker