Spent about a half-hour thinking about what Soraka should be versus what her general community idea is. And I came to the conclusion the Starchild should be Enchanter and Debuffer and needs to have a cohesive reason to engage the enemy as opposed to preventing the enemy from "Acting" or "playing" when too ahead.
So I propose this idea for her rework.
Passive: Star-rush (Name in progress)
Keeping the movespeed mechanic but adding a Stardust mechanic as such.
Moving builds up to 100 stacks of Stardust at full stacks her next offensive ability silences the enemy target(s) for 2 seconds and does 50 + (10 times Soraka's level) Magic Damage.
Starcall: Similar mechanic however at the apex it marks the opponent with a Star if an ally attacks the marked enemy the allied champion gets a shield (numbers up to riot) for 2 seconds increasing 1 by each rank.
Astral Infusion
Passive: Targets marked by Starcall and proc'ed heal Soraka and Ally for 10% of damage dealt and 5% of missing health.
Active: Targeted champion gains 10% Lifesteal and Spell Vamp up to 20% at rank 5
Equinox:
A Linear Skillshot that roots the target hit and explodes around the target for a slowfield and magic damage.
Wish: Calling on the blessing of the Stars Soraka enchants all allies with Star Energy giving a 4 second shield on top of Dual Penetration of up to 10/25/40 For The same time or until the shield is popped.