Way to nerf Soraka in the wrong way... again...
I don't think you quite realize what you're doing with this change. Instead of Soraka even having the option to use her Q and E in lane she will now literally just sit behind her ADC the entire lane phase and heal when needed thanks to the insane health regen on coin and the resolve masteries.
What you should be doing is weakening her early healing and put more POWER into her Q and E, make her heal not enough to just grudgingly get through the early game. Have her snare be a true threat, make her Q something that's a bit more rewarding to use since now she's putting herself in insane risk to use it like in the old days.
Quit supporting the passive playstyle by nerfing the already weaker parts of her kit.