Yi E change idea

Now you dont have to support what im bringing up, but basically, Yi's current E is too low of a CD and basically has it up for the whole team fight because of his R's reset passive, I was thinking to give yi some more skill expression with the E that ive made:

E: True damage Active; REMOVED

E: Passive: When Yi's E is not on CD, it gives him 10% more AD (at all ranks) NEW: Yi slashes his blade mulitple times for 1/1.3/1.6/1.9/2.2 seconds (think pantheon E except Yi can move during the cast, and it has a way shorter radius)

DURATION: 2s

COOL DOWN: 4 seconds

DAMAGE: 20 True damage per 0.2 seconds at all ranks, (100 true damage for 1 second, 220 true damage for 2 seconds) can be canceled at any time

SECONDARY DAMAGE: scales with 15% AD per 0.2 seconds. This extra AD does not get converted into true damage, (for obvious reasons)

ANGLE: 180*

RANGE: 200 Units . . So the reason I decided on this was because of the fact that Yi's current E can do too much damage in too little time, for example the true damage from his E would end up doing lets say 100 damage an auto, with 2.3 attack speed, this means in less then a second yi is doing 230 true damage per second and 460 to 500 true damage in 2 seconds! holy shit! (this isnt even counting conquerer, guinsoos, bloodrazor % hp damage, etc) and i thought maybe instead of his E stacking his auto damage, why not add a new mechanic instead that doesnt stack his Q + auto one shot damage...

Blooper to idea: I was thinking maybe Yi could use his autos during his E for lifesteal or Q reasons, idk, maybe this E could use some slight buffs or tweaks, as it seems quit underwhelming right now, maybe it could synrgize with Q so his E is traveling with him on top of different things?? just a thought for the most part, lemme know what you think!

(yea i know its on the wrong boards but right never looks at concepts and creations)