The new reksai is really fun to play, but she still has a couple of things that make her feel clunky. The thing that's been annoying me is the delays when she burrows/unburrows before she can do anything. They make her feel like a tank but she's supposed to be an ad brusier right? Reducing or removing the delays wouldn't be an insane buff and would make her gameplay feel more fluid.
Also considering she doesn't have any in kit sustain, I was thinking that she could get a 5-10% lifesteal on minions on her q. That or a small heal when she es. Something along those lines to give her some sustain because the 50 health from burrow passive doesn't really do anything.