Nimbus Cloak is actually amazing on Urgot.
Thanks to the new R buff, you'll get massive MS as you pull someone in AND are able to move while grinding, enabling you to easily set up the fear.
Additionally, if you spec into Inspiration over Resolve you can get Approach Velocity which will be active the entire time from firing the missile to grinding them to death, making the followup fear EXTREMELY easy to position however you want.
Try it out.