Rek'Sai burrowing ability...just a thought: 3 possible depths

Hello all This is my first time posting about a champion tweak, but I just couldn't resist. Rek'Sai is an interesting addition to League, and I really appreciate that Riot brought another unique champion with new abilities to the roster. There is one thing I just can't get out of my head. A desert predator with a burrowing ability would almost certainly employ an ambush foraging strategy where they lie in wait for prey. Perhaps this could be incorporated into Rek'Sai by adding an extra burrow depth.

After W is pressed, Rek'Sai burrows to her current depth, looses some vision, gains move speed, and gains the ability to detect prey via sonic detection. I propose that, if W is held longer (perhaps 2 seconds per gradual stance change), she should be able to burrow deeper. She should have 3 possible "stances":

Stance 1) Pursuit (current)

Stance 2) Stalking Intermediate depth where her profile and hit box are reduced in size (perhaps .75), her vision is completely removed (except when attacked), her speed is reduced to her base speed (no boots underground!), and her sonic detection range is doubled. This stance may not be necessary, but would be a nice transitional stance which allowed her to prepare for:

Stance 3) Ambush Deep depth where Rek'Sai becomes invisible, her **vision is completely removed **and she becomes **immobile **(i.e. can not move). In the ambush stance, her sonic detection range is doubled, but she would also have the ability to use sonic detection (perhaps 0.5 radius) around all tunnel entrances/exits. She could emerge from this stance normally via W, E or R. For counter-play, and to avoid Rek'Sai having a free zhonyas, she would not only take a few seconds to burrow to the point where she is invisible, but would also still be vulnerable to all aoe damage. Additionally, if revealed by any stealth detecting ability she would instantly burst from the ground as if she had unburrowed herself.

I feel that this would be an interesting addition to her kit which would accomplish something Riot seems to be considering quite important these days: playstyle diversity, adding variety to the ways Rek'Sai could be played.

Thanks for reading!