Yorick Idea to make him viable

Okay this require a mini rework to making the undead top lane bruiser more useful. With this idea and concept would make him more useful in all around levels, and maybe see some more play with out over breaking him. Passive would remain the same Q: would remain the same. Killing units with ability will spawn a grave, but second active to spawn ghouls would be removed. W: would remain the same E: reworked and changed. Passive: Upon leveling up E graves would increase from 4-6 at max level. 1st active: spawn graves rising mist walkers attacking nearest enemy monster/minion/ or champion. 2nd active: yorick unleashes mist from the shadow isles in an aoe around him marking them with a scent. (kind of like rengars W but with out doing damage and larger aoe). Enemies marked with the scent mistwalkers will jump applying a slow scaling on amount of mistwalkers(5% for each mist walker?) Once activated mist walkers will chase for a fixed distance. Once champions are no longer in range, yoricks mistwalkers will follow yorick only targeting units attacking him. Ult: maiden will only target units yorick is attacking. yorick gains a % damage increase when attack the same target as maiden. When a target maiden is attacking dies, she spawns a mist walker. Maiden will target enemy champion marked with the scent. 2nd active will release maiden to push nearest lane 2nd active was casted in.

I feel this change will allow yorick to be present in all times of the game. The change to E will allow yorick to not always shove the lane when mist walkers are spawned forcing him to over extend, and shove when player wants to shove. Allowing poke and all in when player chooses. And his team fight potential increase. Not only making him a split pusher.