More specifically about the sustain part, let's say your main resource is stamina. A build without Dark Magic needs to use Orzoga sustain food and Sustained by Suffering CP for the extra 150 stam regen, along with whatever recovery ability that skill line has (normally Netch or Rune Focus). With Dark Magic, you can use Bewitched Sugar Skulls or a bi-stat food, which offer between 4.3k and 4.9k max stam. Most skills have a conversion ratio of 10.5 mag/stam = 1 wd/sd, meaning that by switching to a max attribute stat food you are essentially gaining an equivalent of 409 to 471 wd before modifiers. If you add the 6% max stam/mag from Undaunted and 10% from Blood Magic, you're gaining an extra 16% on top of that 4.3k - 4.9k stam, yielding a final converted value of 475 - 547 wd. This value does not appear on the passive descriptions, but requires knowledge in theorycrafting.
Yes and no.
This, in part, assumes a Stam Sorc .. but moreover this also assumes that the Sorc is at full health, otherwise, Blood Magic is providing the passive heal, not the increase to resource pool for the by proxy damage scaling.
In combat, a Sorc is going to be realizing the heal component of Blood Magic the vast majority of the time so I don't see this passive a meaningful source of a damage buff.
If we're talking about PvP then it's common knowledge that Stam based builds have light years worth of advantages over Mag based builds, but, since Sorc isn't inherently a Stam based class I don't think we're ready to just say that the damage shortfall with Sorc has been solved with these passives.
And now the Sorc passives will get nerfed, ensuring MagSorc remains light years behind, while StamSorc will still be able to abuse it just enough to be an annoyance.
StamSorc should have never happened.
Couldn't agree 1000x more. Even most of the "magsorcs" claiming to be magsorcs now on live are just glorified stamsorcs. It's ridiculous.
If its ok for sorcs to run 40k health and have infinite sustain and hps with conservation of energy. Then Sphere of influence should equally completely ignore battle spirit and remove the 25% health cap. The difference is so mind-boggling, yet there is nothing on the radar about this current reality. But we both know if it was even slightly just slightly reversed in a way that sorc shielding looked just a little bit "strong" there would be outrage and PANIC on these streets!