Lee's kit has more base damage and scaling than assassins
Lee's QQER: 1140 + 480% AD + 8% missing HP
Zed's RWQE, considering 50% damage amplification, 2 shrunken hits and passive: 948 + 415% AD + 9-15% max HP
Talon's EQWR, considering 15% damage amplification: 1035 + 460% AD
That's right. Lee's THREE damaging abilities outperform Zed's FIVE abilities and Talon's FOUR. He also gets a free escape on his fourth ability. Remind me again why is he allowed to do this kind of damage with all the utility he has?
No, he won't out damage late game Zed or Talon unless he builds full AD. But if he gets ahead he's impossible to outduel or escape. If he is behind in levels and gold he still wins fights because of how absurdly high his numbers are. Because shutting him down early to have him out damage you in addition to having better utility while 2 levels and 500 gold behind is totally fair and balanced.
Because seriously. Facing this overloaded piece of shit is beyond frustrating. He is in every fucking game. Because there is no reason not to pick someone who does assassin-grade damage with support-level utility.
?
I don't see a problem
Are we looking at the same thing here?

Ah! I see the problem now!
The unseen problem is the deadliest.
I knew you would do that.