Referring to the brief channel (?) where he stops before transforming, and the time between crows being allowed to hit a target again
The first one is my main gripe because it feels very unwieldy having to stop moving to transform. Recommend not to go through with it so he feels a little more fluid.
The other change is a pretty big hit to his presence in teamfights, slightly compensated by new Q in Swain exerting influence, but not for the hit his sustain takes. Some context here would be nice, since I'm not particularly find of the change.