Soraka Ability Rework

Not sure if this is really the place this should go. Soraka is my favorite champion and im kinda sick of her getting a slight change being op for a patch before being nerfed into the ground as she is toxic to play against. These are just my thoughts please leave feed back :D

Soraka Rework Freijnor Take 1

passive: Astral Blessing: nearby allies gain an extra .15% of their bonus armor and magic resist and .25% of sorakas bonus health as their own. Scales with level.

Q:

Divine Smite: When cast on an enemy shreds enemy armor by 2/5/9/14/20. Single target 1.5 second duration scaling by .01 ap Upon ally cast, ally gains 1/2/3/4/5 empowered auto attacks. Deals an extra 40/50/60/70/80 magic damage scaling by 2% of allied bonus ad and .3% of sorakas bonus ap. Empowered attacks heal soraka for amount of magic damage done after magic resist cd 15/13/11/9/7

W: Divine Blessing

active cd: 24/22/20/18/16 Passive: Periodically (once every 8 seconds) heals 1 nearby ally for 10/30/60/100/150 scaling by .2 ap and 2% max health cost: 1%/2%/3%/4%/5% max mana and 8% current health

active: no cost doubles the effect of Divine Blessing and causes the heal to go off once every 6 seconds. Duration of 12 seconds. Triples mana consuption of divine blessing

E: Divine Justice cd: 22/18/14/10/6 Place a field lasting for 2.5 seconds that boosts allied movement speed by 5%/6%/7%/8%/9% scaling by .08 ap Upon expiring the field blazes and traps any enemies in the field for 1 second.

R: same

I know the balancing is HORRIBLY off but its really the core of the mechanics i would like to see. To strong? To weak? Terrible concepts?