Lee Sin Nerf Idea
Make it so that his energy does not passively regenerate if his energy drops below a threshold, say 40 energy.
The idea is that if lee uses a full combo and does not weave in auto-attacks, he will be punished by not having access to his spells.
So for example, if he uses his full combo and he drops below his energy threshold, then he cannot simply ward hop or q to minions/monsters and be unchasable. This will add counterplay and limit lee sin's ability to abuse all of his strengths. It will reward lee sin for being judicious about his combos and force him to make more use of his auto-attacks. It also respects the features of Lee's kit that Lee players like.