I really have to question why Soraka players do this. Stacking health makes your W more expensive and your Q heals you WAY slower. I can kind of understand 
, it gives you good MR and the CD + passive are great. But I really just roll my eyes when I see Sorakas build 
.
Would anyone care to explain it to me?
Warmog gives her a lot of health regen. Although, going AP also gives her a lot of health from Q...
Warmogs is mostly for the passive rather than the health, at least it should be...
I can see Warmogs only for the passive, since Soraka's health regen... isn't the best. It'd allow her to heal more often.
With the changes to regen, giving her more health regen is next to useless. Soraka is best with some AP and mana sustain now, so she can Q effectively
Would anyone care to explain it to me?
it's noob bait
Warmogs gives health regen as well, which is good on raka. It's not good but that's the reasoning.
You build mana regen so that you don't run out of mana if you are spamming spells that cost mana. Soraka's W costs health, so buying a strong health regen item lets you cast more Ws before you have to go back to base. Warmog's is the strongest health regen item in the game.
If you aren't building tanky, you shouldn't be able to land Qs consistently enough to keep your health up. The travel time scaling with range and the ground indicator make it difficult to land unless you are close. If you are close to your enemies and you haven't built stuff like , you will die. Soraka isn't very mobile and doesn't have reliable cc to escape with.
People just think that it costs one set amount of health, which allows them to heal way more, but it actually costs percent health.
There's basically no good reason to use Warmog's on her. There are better items that she could become tanky with (Spirit Visage, Zz'rot Portal, Guardian Angel, etc), and there are better items for recovering her HP (anything with AP).
+ = the cost of 1 heal every 15th second as long as you don't take damage.
The real cost is item slots, since you get only 10% CDR from the combo and no AP. Meaning you have to give something up no matter what you pick for your last slot.
When you rush a warmog you are at about 2000HP when you build it. That's 60hp5 + 20hp5 (perceverance mastery) constantly. (unless you get hit, but if you do, you'd be happy to have health so). And it gonna scale with level up from your max hp.
By comparision, runes give 20hp5, masteries 10hp5. Starcall at max level could theoricaly heal 80hp5. But that's whould require you to hit every time it's off cooldown. Which wont happen because. A) you'd run out of mana. B) it's a skillshot so you are bound to miss often. C) you're not in direct contact with the enemies half of the time.
Other source of hp5 are impracticable. Spellvamp wouldnt work because her only source of dmg is an aoe so it wouldn't be gold efficient. Her base HP5 was nerfed, so anything with health regen is a waste of gold. Potions don't scale well with late game. And life steal kinda works, but that's a completly different build I wont get there now.
So at the end, the warmog is at least an improvement of her heal by 50%. When in direct contact with enemies. And it allows the normal heal even when no enemies are around (which is more often then not).
Also, the warmog gives the extra advantage of being able to burn 50% of your HP in advance. Which should correspond to 1 full hp bar for your teammates. And still stay just as squishy as you were before.
And it also unlock other health items which would have been forbidden before the warmog. Like a ROA.
They probably are the same players who think her W costs % current health, not % max health.
She needs AP to be most effective, because it improves her healing and damage, without increasing her health costs.
Health regen.
Warmog's is useless on Soraka.. Randuin's would be better.
The reason is to be tanky and not get insta-gibbed by anybody on the enemy team.
People are not stacking health...they are looking at the HP regen on those items and thinking it will allow more heals over time due to the regen effects. While regen seems like a natural fit for her self depleting kit, those options are sub par in most cases.
Here is a list of better options for regen in my experience for gaining non-combat healing. Q with sizeable AP is great during fights, these options are great outside of that. Taking some combination if the following is all you need...
HPp5 Quints or Seals HPp5 Defense masteries HPp5 Utility masteries Buscit and Elixir Utility masteries Buying Biscuits and Elixir early/often Tear of the goddess with Utility HPp5 mastery
Some combination of these will usually be more than enough regen to free up her item consideration from HPp5 such as what Warmogs and SV offers, to taking the best item for the situation, and more specifically items with large AP gains that make her heals and her Q damage/regen respectable.
Going into the Tear can be dangerous early, but it adds tons of sustain and develops into Seraph which is just awesome on her. A ton of AP and some solid HPp5. Plus a shield to survive assassin dives? Yes please. It also makes defensive items like Frozen heart more valuable because it adds AP and HPp5 to the stat gains.
If you ignore the effects on your heal, warmogs makes Soraka harder to burst/kill when she's by herself, especially if she gets it early. She has no escape, her heal is short range, and she can't just build like glass unless the enemy is really stupid (or you position perfectly). That's my guess at least.
It's only good when you absolutely under no circumstances are allowed to use your q. So... when the have 3 assassins. You're still useless, but at least you're less useless.
I never never ever build either of those items.
Soraka is so squishy early game, and she has to donate her health, making it really easy to kill her unless she stacks it.
It can be good in some situations, but they are more rare than it is for people to buy . Specifically, it is good if you need to top off your team to resist poke more than you need rapid fire clutch heals to keep people a live in a team fight.
I'm building health regen, not just flat health.
dont stack health with her its pointless if u just get a 
you will be fine for not being insta killed and go with the rest as sup items
