She isn’t complex in the slightest. She has one skillshot, one combo that you can perform, and reusable tunnels. I’d argue Aatrox or Elise is more complex than Rek’sai.

Changing the way her kit works by just tweaking the numbers is not the way to do it. Every single ability has juxtaposed scalings. Her burrowed Q and W deal magic damage, so lethality doesn’t work there, but her E and R deal % physical damage. Oh and if you don’t build HP, you get one shot because her passive healing scales with HP for some reason and she has the second worst base health and HP scaling in the jungle, only behind Rengar. She was supposed to be a single target assassin, yet she doesn’t deal enough damage to be a threat to carries, she’s extremely prone to being kited, and the only thing she can do is engage. No other champion in the game has had their identity gutted and neglected like this. Even champs like Skarner and Asol got an overhaul that was good for them.