Game State of Rek'Sai
This champion has a really original and cool concept but feels and is very lack luster. Once they get out of range they tend to stay out of range because of your lack of CC. Her "Q" (in burrow form) should have some sort of slow in order to be able to chase people down. Not only that but she is extremely vulnerable in burrow form because you can not attack and just get kited all day long. Her damage feels very low and doesn't do much out of burrow form but at the same time does nothing in burrow form (you will understand once you play her).
If she gets some kind of buff in burrow form, some CC, ult passive changed to something else and a little damage increase she would probably be in a much better state.
***Her clear speed is really good with rangers.