I thought about a Shaco rework in my spare time. I think it could be fun. No numbers, just a chicken scratch idea..
My Shaco rework progresses around Shaco's hybridization, and utilizes both AP and AD.
So, for starters,
E Becomes a skillshot. It fires two daggers in a straight, aimed line (think Zenith blade). The first one is fired immediately, the second 0.5 seconds after. If the second dagger hits the same target as the first, it deals 1.5 x damage.
The first dagger is either magic or physical damage, depending on whichever of Shaco's stats are lower, and has substantially less scaling. The next dagger launched is the opposite stat, with much higher scaling. So, if Shaco had 40 ap and 270 AD, the first dagger would be Magic Damage, scaling from his AP. If the next dagger lands, it is physical damage. Removed passive slow from E. Now applies on first dagger shot.
Passive: Shaco loses his 20 % backstab passive. Instead, all of shaco's auto attacks apply a stack of Trickery to his enemy. Trickery stacks 3 times, increasing shaco's damage against the enemy by 2 % per stack. (This is useless, but useful with his W)
W is no longer applicable as a placement trap. Instead, Upon three stacks of Trickery shaco may spawn a Jitb on his enemy champion / big minion that will appear after a 1.5 second delay, complete with unique animation and windup (Think zed mark). Once a jitb is spawned on a target, that target receives a buff called "alert", which makes the target immune to trickery for 9 seconds (3 if big monster). Jitb's now have (2,3,4,5,5)per level health permanently and each damage taken reduces health by 1. (This should help land Jitbs but still allow aoe / team focus to render them useless. No longer can an enemy one shot them, though.) Jitbs cannot be placed at
R: Shaco's ultimate now works in two distinct ways, based on either having more AP or AD.
AD ultimate: If Shaco has more AD, his clone spawned is controllable via alt and also gains 2 extra health per AD. Shaco's clone absorbs 70 % of the damage shaco takes at a 25 % increased rate (If you're hit for 100, 70 + 25% of 100 (25) damage goes straight to the clone, whilst you take 30) This will help shaco endure better in teamfights should he go AD.
AP Ultimate: If Shaco has more AP, his clones are no longer controllable. Instead, for every 200 AP, Shaco spawns an additional clone that will explode after 4 seconds to a maximum of 3 clones. Instead of having health, shaco clones now have 5 base health reduced by 1 for each shot. (AP ratio reduced from 1 to 0.6
Q Deceit : Shaco no longer stealths. Blink remains. However, upon landing, Shaco gains