SSS Soraka, Supports, and Sustain
They are a few champions with the ability to sustain ally champions such as; Nami's Ebb and Flow, Sona's Aria of Perseverance, Alistar's Triumphant Roar, and of course Soraka's Astral Blessing.
Each heal works in a different way;
Ebb and Flow's power is divided into three parts, either Heal-Damage-Heal or Damage-Heal-Damage. In order to get your budget's worth of power you gotta position to get either two allies and one enemy, or two enemies and one ally
Aria of Perseverance's power budget is mostly hidden in the resistances it grants a whole team, but in lane is used to heal very small amounts of health over a period of time. It's spammable and mana-hungry, yet doesn't outright erase damage.
Triumphant Roar heals everyone and their grandmother in the nearby area. It doesn't have much power alone and most of it goes to Ali himself, but it does heal minions, helping with pushing and denying some CS early game if you're lucky/smart.
Astral Blessing is a single target high-yield heal with a temporary armor buff. It's current power is offset by HIGH cooldowns and manacost
(Note that Sona's and Soraka's abilities are gated(cooldown and mana), where as Nami's and Alistar's abilities are power-conditional(Can't just use on an ally to get your powerbudget's worth). I feel like this is an important distinction to keep in mind)
Good deal, right? So what's wrong with Soraka's heal? Sure it's bursty but it only targets one ally and costs a boatload of mana.
Well, a couple of major points wrong with it. First off is that Soraka's core fantasy (Medic!) forces most of her power budget into her W and Ult, making the other abilities sorta lackluster on their own. This leads into another major issue, the optimal play style of Soraka in lane; PASSIVENESS.
Now I'm not denying the power of stacking AoE MR shred, it kills in teamfights, but in lane you really can't use it without; putting yourself up front and in serious risk (damn girl you is the squish), pushing the lane no matter what, and inadvertently denying your own carry some CS. Her Infuse can be a nice harass tool in lane if leveled first, but most Sorakas are going to opt for heal first. Thus it's main use during laning is simply to interrupt and prevent action.
With all this in mind, that means the optimal way to play Soraka during the laning phase is super-passive-topoff-stayaway-farmfest-funtime! This is extremely frustrating for everyone else involved. It's a decreased chance for plays to happen and for lane opponents to meaningfully interact. Sure the other supports I mentioned could do this to some extent, but their power lies in the entirety of their kits; Nami for unbelievable kiting, Alistar for CC/Displacement, Sona for insane pokes and teamwide engagement through ER.
The kit needs to be brought in line to work with and not against the structure of the game without ruining the core fantasy of medic. If a lot of power needs to go into Astral Blessing to fit the fantasy, then it must either be heavily gated (as is now), or power-conditional.
You can't really make a dedicated heal spell interactive, so it needs to go through another part of her kit in someway, a part of her kit that DOES provide interaction. An example below;
DISCLAIMER: Numbers and effects below are pure conjecture and may need changing in order to be considered balance.
| Ability | Name | Effect | |- |(Passive) http://i.imgur.com/2EA0naM.png | Salvation | Offensive abilities weakens the resolve of their targets, reducing their damage output by 5/10/15% for 2 seconds. Any damage applied with weakened resolve blesses the ally champion hit with Astral Essence| |(Q) http://i.imgur.com/CJ8Qq6Q.png | Starcall | Calls down an astral being to the target area dealing 60/95/130/165/200 (+50% Ability Power) magic damage.| |(W) http://i.imgur.com/ALvytBW.png | Astral Blessing | Heals a single ally for 65/95/125/155/185 (+ 30% AP) and increases their armor by 50/65/80/95/110 (+15% Ability Power). If the target ally is blessed with Astral Essence, the blessing is consumed and the amount healed is doubled.| |(E) http://i.imgur.com/6ADYApR.png | Infuse | On Ally Cast: Soraka drains 5% of her maximum mana to restore 20/40/60/80/100*(+5% maximum mana)* mana to her target ally. If the target ally is blessed with Astral Essence, the blessing is consumed and the amount restored is doubled. On Enemy Cast: Soraka silences the target for 1.5/1.75/2/2.25/2.5 seconds and deals 40/70/100/130/160*(+ 40% AP)(+5% maximum mana)* magic damage to them.|
With the iteration above the heal shouldn't be gated so heavily as it's pretty lackluster to cast individually. It's as strong as a single bounce of Ebb and Flow. Instead it's now power-conditional; using Starcall or Infuse offensively allows you to supe up your heal/manasustain giving you incentive to be interactive in lane. The kit also flows together better and hopefully allows for more interesting plays. Cooldowns would still have to be worked out.
Or I could be completely out of my head and this whole post is ridiculous...