Possible ideas to change Zed and Lee sin [Bring old zed back?]

So right now in the current meta mobility is like your best friend. You can win easily with it. That obviously means and are some of the stronger champions. So them being so strong, the community just hates them and nerfs are wanted and/or changes to their kits so they aren't so mobile. (This post doesn't include kalista aa) So I have a few ideas to change these two in a way so they aren't as broken as people assume they are.

So my idea for Zed is:

Should we bring back old zed so he can't escape that "easily"? I mean instead of having an EZ escape with his W and R, what if we go back to old zed where his shadow would go behind someone making him stick to his target with only W as his escape. Switching to the R shadow will still remain the same. That is one of my ideas. Another thing I would possibly change is how much cool down reduction he gets from using his e on his w.

R: [Death Mark]: **Zed leaves a shadow behind and **Zed spawns a shadow behind his enemy and dashes to target Champion, marking them for death. After 3 seconds, the mark will trigger, dealing a percentage of the damage Zed has dealt while the mark was active.

E:[Shadow Slash] Zed and his shadow slash, dealing 60/90/120/150/180 (+80% bonus Attack Damage) physical damage to nearby enemies. Each enemy champion hit by Zed's Shadow Slash reduces Living Shadow's cooldown by 2 seconds. Maybe just reduce it by 1 second? Or possibly just 0?

As for Lee sin. This guy is so mobile, like seriously what do? Its hard to balance this guy because you remove one thing and its gg. This is what I have planned:

Current R: Lee Sin performs a powerful roundhouse kick launching an enemy champion back, dealing 200/400/600 (+200% bonus Attack Damage) physical damage to the target and any enemies they collide with. Enemies the target collides with are knocked into the air for a short duration.

New R: Lee Sin performs a powerful roundhouse kick launching an enemy champion back, dealing 200/400/600 **(+150% bonus Attack Damage) **physical damage to the target and any enemies they collide with. Enemies the target collides with are knocked into the air for a short duration.

Current W: Safeguard: Lee Sin rushes towards a target ally. If the ally is a champion, Lee Sin shields the ally and himself for 40/80/120/160/200 (+80% Ability Power) damage for 2 seconds and Safeguard's cooldown is reduced by 50%.

New W: Safeguard: Lee Sin rushes towards a target ally. If the ally is a champion, Lee Sin shields the ally and himself for 40/80/120/160/200 (+80% Ability Power) damage for 2 seconds and Safeguard's cooldown is reduced by 50% (No CDR)

So mainly what I am doing here is toning down his ultimate damage scaling a bit because I mean already he has high damage. The other thing I am removing is when he uses W on his teammate it doesn't reduce the cooldown of it by 50% therefore not giving him the ability back that quick.

So these are my changes that I think could possibly help with these strong champions and their mobility. I mean really I don't know what else to say beyond this point its just an idea. Hopefully riot can read this :)