Rek'Sai's Burrowed Q Should Slow
After watching Trick2G, TheOddOne, Wingsofdeathx play Rek'Sai. They all said Rek'Sai's Q should slow. Currently it does low damage and only grants vision. A slow would help her catch up to her prey.
The AP scaling on her burrowed Q is kind of not needed since it grants no utility besides vision. Vision you would have already have if you didnt burrow. If her burrowed Q does not slow then at least convert her Q scaling to scale off of AD instead of AP.