Ryze mini rework concept (Even though riot has given up on him I haven't!)

I know Meddler said they wont bother to try and change for what I can guess will at least be a few months but I really just want to put this idea out there. This mini rework returns his Desperate power (which I reckon was pretty iconic) while nerfing his wave clear for the pro scene. Keeps his strengths of duelling, lockdown and AOE team fight damage while changing other areas of his kit, simplifying him and removing his impossible to balance ultimate.

>Passive: Arcane mastery Same

>Q: Overload Damage: 60/85/110/135/160 +** 35% AP** + 3% bonus mana

>W: Rune prison Same

>E: Spell flux Ryze releases an orb of pure magical power that damages an enemy and marks them with flux tor 4 seconds. Ryze's spells have additional effects against the fluxed enemy.

>Fluxed interactions

>Q: Deals 40/50/60/70/80% bonus damage >Removed: Bounces to fluxed enemies >W: Roots for 1.5 seconds >E: New: Reduces MR of target enemy by (9/12/15/18/21%) before bouncing to nearby enemies applying the same reduction and dealing half the damage. (Edit: MR reduction does not stack)

>**Removed: Spreads spell flux to nearby enemies **

>R: NEW(or old?)** Desperate power **

>Active: For 5 seconds, Ryze gains 10/15/20% spell vamp and his spells deal 50% of their damage as AOE around the original target.

>Cooldown: 70/60/50

Quick rundown of possible balance changes The spell vamp on the ultimate could be replaced by some other combat stat like ms or damage reduction but whatever it is, it needs to be useable in 1v1 duels which is why spell vamp makes sense to me. My biggest fear is that he could abuse the spell vamp with ravenous hunter but if it is too OP it can be changed or nerfed to something else. Could also make the AOE damage scale like 40/50/60% or 35/50/65%.

Anyway, that's my idea of a Ryze mini rework just my thoughts I would like to hear your opinions on it.