Interesting support concept

I have what i think would be an interesting support champ concept

I know they have played around with which doctors and the voodoo concept but couldnt make a champ that fit it.

so here is my idea the champ would be more about buffing and debuffing then damage or cc. after all thats kinda what a witch doctor does. he boost you while putting a curse on someone else

Q would be toggle heal ability. target enemy minion or champion and then target friendly champion and drain a % hp from the enemy and heal the friendly for the amount drained.

W would place an idol or totem in the playing field while in range of the idol enemy champs lose % amount of armor and resits while near by champions would gain the the amount that was removed spread evenly

E i was thinking of some sort of aura ability that was always on, mana regen for near by allies or movement speed or even reduced coold downs

R would probably be the best ult from a support for a team fight. the witch doctor would gain some armor and resits while preforming a ritual dance. while dancing the enemy team near by would get confused and spells and abilities even auto attacks can hit there own team. making aoe abilities and targeting harder