So Cass?
I love her rework. At first i was a bt skeptical because it fel so much different and awkward but i adapted only to realize i hate her passive. It is stupid and it is only to compensate for her removal of a really good passive. Was her old passive op? Ehhh, not really, but it was very loaded. Now, it's just, no boots, extra movement speed. Which i could acquiesce with, if her movement speed wasn't already low as shit. She is imo, the epitome of positioning or die. She is immobile and can get destroyed in an instant. Her movement speed is what, 400 at lv 18? Syndra, one of the most immobile mages in game, has movement speed of 30 and she can easily pass 400 with boots.
TL'DR : Cass' passive is useless and just compensating half heartedly
passive is just a free cast every 18 seconds. How fun right?
or
and she's plenty fast enough.